Patent ID: 12188849

DETAILED DESCRIPTION

Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. In this regard, the present embodiments may have different forms and should not be construed as being limited to the descriptions set forth herein. Accordingly, the embodiments are merely described below, by referring to the figures, to explain aspects of the present description. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items. Expressions such as “at least one of,” when preceding a list of elements, modify the entire list of elements and do not modify the individual elements of the list.

As the present disclosure allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present disclosure to particular modes of practice, and it is to be appreciated that all changes, equivalents, and substitutes that do not depart from the spirit and technical scope of the present disclosure are encompassed in the present disclosure. In the description of the present disclosure, even though illustrated with respect to different embodiments, the same reference numerals are used for the same components.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings, and when described with reference to the drawings, the same or corresponding components are given the same reference numerals, and repeated description thereof will be omitted.

It will be understood that although the terms “first”, “second”, etc. may be used herein to describe various components, these components should not be limited by these terms. These components are only used to distinguish one component from another.

An expression used in the singular form encompasses the expression in the plural form, unless it has a clearly different meaning in the context.

In the present specification, it is to be understood that the terms such as “including” or “having” are intended to indicate the existence of the features or components disclosed in the specification, and are not intended to preclude the possibility that one or more other features or components may be added.

Also, in the drawings, for convenience of description, sizes of elements may be exaggerated or contracted. For example, since sizes and thicknesses of components in the drawings are arbitrarily illustrated for convenience of explanation, the following embodiments are not limited thereto.

In the embodiments below, an x-axis, a y-axis, and a z-axis are not limited to three axes on a rectangular coordinates system but may be construed as including these axes. For example, an x axis, a y-axis, and a z-axis may be at right angles or may also indicate different directions from one another, which are not at right angles.

When an embodiment is implementable in another manner, a predetermined process order may be different from a described one. For example, two processes that are consecutively described may be substantially simultaneously performed or may be performed in an opposite order to the described order.

The terms used in the present specification are merely used to describe particular embodiments, and are not intended to limit the present disclosure. In the present specification, it is to be understood that the terms such as “including” or “having,” etc., are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof disclosed in the specification, and are not intended to preclude the possibility that one or more other features, numbers, steps, actions, components, parts, or combinations thereof may exist or may be added.

FIG.1illustrates an existing control surface load simulation apparatus20,FIG.2illustrates a control surface load simulation apparatus10according to an embodiment of the present disclosure, andFIGS.3to5illustrate a reaction force providing structure100according to an embodiment of the present disclosure.

As shown inFIG.1, the existing control surface load simulation apparatus20includes a pair of support surfaces21and23, a control surface25disposed between the pair of support surfaces21and23, and a pair of actuators27and29connecting the pair of support surfaces21and23to the control surface25.

The pair of actuators27and29applies a load to the control surface25according to a user's instruction input through a controller or according to a preset program. The control surface25to which the load is applied is located between an up position and a down position while rotating about a hinge axis HA.

However, it is very difficult to perfectly match the magnitudes or timings of loads applied to the control surface25by the pair of actuators27and29, and thus, a deviation occurs in the loads during a load application test process.

The control surface load simulation apparatus10according to an embodiment of the present disclosure is a device for solving such a problem, and includes a control surface CS, a reaction force providing structure100, a first support surface200, a second support surface300, and an actuator400.

The control surface CS may be a lift generating apparatus that determines the flight attitude of an aircraft by generating three-axis motion (yaw axis, roll axis, and pitch axis motion) of the aircraft or a replica of the lift generating apparatus. The type of the control surface CS is not particularly limited, and may be a main control surface such as an aileron, an elevator, or a rudder, a secondary control surface such as a spoiler, a flap, a slat, or an air brake, or any one of a trim tab and a balance tab.

The position or operation relationship of the control surface CS is not particularly limited. In an embodiment, the control surface CS may be disposed on one side of the control surface load simulation apparatus10so as to be rotatable about a hinge axis HA according to the operation of the actuator400. That is, the control surface CS may rotate on a plane about the hinge axis HA.

When the actuator400, which will be described below, operates to apply a certain load to the control surface CS, the reaction force providing structure100applies a reaction force corresponding to the load to the control surface CS. The reaction force providing structure100will be described below.

The first support surface200is connected to one side of the reaction force providing structure100. The first support surface200may be disposed on the ground or disposed on a fixed structure. In an embodiment, the first support surface200may include a connection portion so that the reaction force providing structure100is movable relative to the first support surface200. More specifically, the first support surface200may be hinged with one end of the reaction force providing structure100. Accordingly, when the control surface CS is moved by the actuator400, the reaction force providing structure100connected to the control surface CS may also rotate with respect to the first support surface200.

The second support surface300is disposed to be apart from the first support surface200in a height direction. The second support surface300may be disposed on one side of the control surface load simulation apparatus10through a support frame (not shown). In an embodiment, the actuator400may be connected to one side, for example, a lower surface, of the second support surface300.

The actuator400applies a load to the control surface CS while being connected to one side of the second support surface300. The actuator400may receive a user's instruction by wire/wirelessly through a controller or the like and apply a load to the control surface CS. Alternatively, the actuator400may apply a load to the control surface CS according to a preset program.

The type of the actuator400is not particularly limited, and an apparatus capable of applying a load to the control surface CS is sufficient. For example, the actuator400may mechanically apply a load to the control surface CS through a rotating shaft, a torsion beam, or the like. Alternatively, the actuator400may apply a load to the control surface CS as a hydraulic apparatus.

As shown inFIG.2, one end of the actuator400may be connected to the second support surface300, and the other end may be connected to the control surface CS. The other end of the actuator400may apply a load to the control surface CS while a portion connected to the control surface CS moves.

Referring toFIGS.2and3, the reaction force providing structure100according to an embodiment of the present disclosure may generate a reaction force corresponding to a load applied to the control surface CS by the actuator400. For example, the reaction force providing structure100includes a plurality of springs, and when the actuator400applies a certain load to the control surface CS, the reaction force providing structure100is compressed or tensioned accordingly to apply (i.e., provide) a reaction force corresponding to the load to the control surface CS.

In an embodiment, the control surface load simulation apparatus10may further include a potentiometer500and a load cell600. As shown inFIG.2, the potentiometer500may be disposed on the hinge axis HA of the control surface CS. When the control surface load simulation apparatus10applies a load to the control surface CS, the potentiometer500may measure the angular displacement of the control surface CS and check and control a rotation angle of the control surface CS according to the load applied to the control surface CS.

In another embodiment, the control surface load simulation apparatus10may include a linear displacement gauge (not shown) instead of the potentiometer500. The linear displacement gauge may be disposed on one side of the control surface CS, and when the control surface load simulation apparatus10applies a load to the control surface CS, the linear displacement gauge may measure the linear displacement of the control surface CS and check and control the position of the control surface CS according to the load applied to the control surface CS.

In addition, the load cell600may be disposed in a connection portion between the control surface CS and the reaction force providing structure100or in the reaction force providing structure100. More specifically, the load cell600may be disposed in a movement guide150of the reaction force providing structure100. The load cell600may sense the magnitude of a reaction force generated by the reaction force providing structure100.

Through this, the control surface load simulation apparatus10may set a criterion for stopping a test when the test proceeds differently from an expected scenario (for example, when the magnitude of the reaction force generated by the reaction force providing structure100exceeds a preset range, or when unexpected deformation occurs in the control surface CS or the like) during a load simulation test.

In an embodiment, the reaction force providing structure100includes a pair of stators and a mover moving between the pair of stators, and one or more springs disposed between the pair of stators and the mover may be compressed or tensioned according to the displacement of the control surface CS.

For example, when the actuator400presses down the control surface CS, the mover moves downward (e.g., in a right direction inFIG.3) between the pair of stators, and accordingly, a spring between the mover and one stator is compressed and generates a reaction force. Conversely, when the actuator400pulls the control surface CS upward, the mover moves upward (e.g., in a left direction inFIG.3) between the pair of stators, and accordingly, a spring between the mover and the other stator is compressed and generates a reaction force.

In an embodiment, the reaction force providing structure100may include a first stator110, a second stator120, a linear guide130, a main mover140, a movement guide150, a fixed guide160, a first spring171, and a second spring172.

The first stator110may be connected to the first support surface200. For example, as shown inFIGS.2and3, a connection portion connected to the first support surface200may protrude from one side of the first stator110. The connection portion may be connected to the first support surface200through a pin or the like, and through this, the first stator110may be rotatably connected to the first support surface200.

The first stator110and the first support surface200are not necessarily connected to each other through a hinge, but may be connected to each other through a ball joint or the like. However, hereinafter, a case, in which similarly to the operation of the control surface CS, the first stator110and the first support surface200are connected to each other through a hinge, and accordingly, the first stator110also rotates on the same plane as the control surface CS, will be mainly described.

The second stator120is disposed to be apart from the first stator110, and the linear guide130, the main mover140, the first spring171, the second spring172, and the like, which will be described below, may be disposed between the first stator110and the second stator120.

In an embodiment, the second stator120has an insertion hole, and the movement guide150to be described below may be inserted into the second stator120through the insertion hole.

The shapes and sizes of the first stator110and the second stator120are not particularly limited. For example, the first stator110and the second stator120may be polygonal flat plates. Hereinafter, for convenience of description, a case in which the first stator110and the second stator120have disk shapes will be mainly described.

At least one linear guide130may be disposed between the first stator110and the second stator120. The linear guide130is a linear member having one end connected to the first stator110and the other end connected to the second stator120, and functions as a guide through which the main mover140to be described below moves.

In an embodiment, three linear guides130may be arranged, and these linear guides130may be arranged to form an equal angle (e.g., 120 degrees) with respect to the central axis of the reaction force providing structure100.

The main mover140is disposed between the first stator110and the second stator120and moves along the linear guide130. The main mover140has one side into which the linear guide130is inserted, and may have a circular plate or polygonal plate shape.

In an embodiment, one side of the main mover140may be connected to the movement guide150to be described below. Accordingly, when the actuator400operates and the movement guide150to be described below moves, the main mover140also moves in the same direction. In addition, a spring between the main mover140and the first stator110or the second stator120may be compressed to generate a reaction force.

In another embodiment, the main mover140may be formed integrally with the movement guide150. That is, an end of the movement guide150is formed to have a flat plate shape, and a corresponding portion may perform the function of the main mover140.

The movement guide150is a rod-shaped member and compresses the spring while moving according to the displacement of the control surface CS. For example, one end of the movement guide150is connected to the control surface CS, and the other end is connected to the main mover140. Accordingly, when movement occurs in the control surface CS, the movement guide150moves, the main mover140also moves in the same direction, and the first spring171or the second spring172is compressed.

In an embodiment, the movement guide150may be inserted through an insertion hole of the second stator120. The insertion hole may be formed parallel to a longitudinal direction of the movement guide150and/or the central axis of the reaction force providing structure100. Accordingly, the insertion hole may guide the movement guide150to move in a straight line.

In an embodiment, the movement guide150may be connected to the control surface CS to be movable relative to the control surface CS. For example, as shown inFIG.3, one end of the movement guide150may be hinged to the control surface CS through a pin or the like. Accordingly, when displacement occurs in the control surface CS, the movement guide150rotates around the pin, and the main mover140connected to the other end of the movement guide150moves and compresses the spring.

In an embodiment, the movement guide150may have an inner space that is a hollow. A portion of the fixed guide160may be inserted into the inner space. The movement guide150may move while the fixed guide160is inserted therein.

The fixed guide160is a rod-shaped member, and one end of the fixed guide160may be connected to the first stator110and the other end may be inserted into the inner space of the movement guide150. Also, the fixed guide160may pass through an insertion hole formed in the main mover140and be inserted into the inner space of the movement guide150.

The first spring171may be disposed on the outer circumferential surface of the fixed guide160. For example, as shown inFIG.3, the first spring171is disposed between the first stator110and the main mover140, and may maintain a state in which the first spring171is wound around the outer circumferential surface of the fixed guide160. Accordingly, when the main mover140moves toward the first stator110, the main mover140moves along the linear guide130and the fixed guide160to compress the first spring171.

In an embodiment, both ends of the first spring171are not fixed to the first stator110and the main mover140. That is, both ends of the first spring171may be free ends.

The second spring172may be disposed on the outer circumferential surface of the movement guide150. For example, as shown inFIG.3, the second spring172is disposed between the second stator120and the main mover140, and may maintain a state in which the second spring172is wound around the outer circumferential surface of the movement guide150. Accordingly, when the main mover140moves toward the second stator120, the main mover140moves along the linear guide130and the movement guide150to compress the second spring172.

In an embodiment, both ends of the second spring172are not fixed to the second stator120and the main mover140. That is, both ends of the second spring172may be free ends.

In an embodiment, the elastic modulus of the first spring171may be the same as that of the second spring172. Alternatively, the first spring171and the second spring172may have different elastic moduli, and thus may form different reaction forces when the control surface CS receives a compressive load and a tensile load, respectively.

An operating state of the control surface load simulation apparatus10according to an embodiment of the present disclosure will be described with reference toFIGS.3to5.

In a state in which the actuator400does not operate, that is, in a neutral state with no change in the position of the control surface CS, the first spring171and the second spring172maintain a static equilibrium state in which no force is applied thereto.

Next, when the actuator400operates to press the control surface CS downward, the movement guide150of the reaction force providing structure100moves downward (e.g., in a right direction inFIG.4). Accordingly, as the main mover140connected to the movement guide150moves toward the first stator110, the first spring171wound around the fixed guide160is compressed to form a reaction force.

In this case, the second spring172is only wound around the outer circumferential surface of the movement guide150, and is not fixed to the second stator120or the main mover140. Therefore, even when the main mover140moves, the second spring172is not compressed or tensioned. That is, the displacement of the second spring172does not change.

Next, when the actuator400operates to tension the control surface CS upward, the movement guide150of the reaction force providing structure100moves upward (e.g., in a left direction ofFIG.5). Accordingly, as the main mover140connected to the movement guide150moves toward the second stator120, the second spring172wound around the movement guide150is compressed to form a reaction force.

In this case, the first spring171is only wound around the outer circumferential surface of the fixed guide160, and is not fixed to the first stator110or the main mover140. Therefore, even when the main mover140moves, the first spring171is not compressed or tensioned. That is, the displacement of the first spring171does not change.

Through such a configuration, the control surface load simulation apparatus10according to an embodiment of the present disclosure may simulate a compressive load and a tensile load, applied to the control surface CS, by using only one actuator400.

In particular, as the control surface load simulation apparatus10according to an embodiment of the present disclosure includes the reaction force providing structure100that generates a reaction force with respect to a load applied by one actuator400to the control surface CS, there is no need to synchronize the timings and magnitudes of loads applied by a plurality of actuators400. In addition, the reaction force providing structure100including a plurality of springs may generate a reaction force while responding immediately according to the displacement of the control surface CS.

Therefore, the control surface load simulation apparatus10according to an embodiment of the present disclosure may accurately simulate a control surface load even with a relatively simple configuration, and maintenance and repair of the control surface load simulation apparatus10are very easy.

FIGS.6to8illustrate a reaction force providing structure100A according to another embodiment of the present disclosure.

The control surface load simulation apparatus10according to an embodiment of the present disclosure may include the reaction force providing structure100A. The reaction force providing structure100A may further include a plurality of sub-movers and springs, as compared to the reaction force providing structure100according to the above-described embodiment. Other components of the reaction force providing structure100A may be the same as other components of the reaction force providing structure100, and detailed descriptions thereof are omitted.

As shown inFIGS.6to8, the reaction force providing structure100A according to the present embodiment may further include a first sub-mover181A, a second sub-mover182A, a third spring173A, and a fourth spring174A.

The first sub-mover181A is disposed between a first stator110A and a main mover140A, and moves along a linear guide130A. The first sub-mover181A is a circular or polygonal flat plate similar to the main mover140A, and the linear guide130A passes through the first sub-mover181A along the edge thereof and a fixed guide160A passes through the inside of the first sub-mover181A.

In an embodiment, the first sub-mover181A may divide an area between the first stator110A and the main mover140A. For example, a first spring171A may be disposed between the first sub-mover181A and the main mover140A, and the third spring173A may be disposed between the first sub-mover181A and the first stator110A.

Each of the first spring171A and the third spring173A may be wound around the outer circumferential surface of a fixed guide160A, and both ends of each of the first spring171A and the third spring173A may be free ends that are not fixed.

Accordingly, as shown inFIG.7, when a movement guide150A presses the main mover140A toward the first stator110A, the first spring171A positioned between the main mover140A and the first sub-mover181A is compressed while the main mover140A moves along the fixed guide160A. At the same time, the third spring173A positioned between the first sub-mover181A and the first stator110A may also be compressed, thereby generating a reaction force against a load applied to a control surface CS by an actuator400.

In an embodiment, the first spring171A and the third spring173A may have different elastic moduli. For example, the first spring171A may have an elastic modulus k1, and the third spring173A may have an elastic modulus k3. Accordingly, when the main mover140A compresses the first spring171A and the third spring173A with a force F, the total displacement δ satisfies δ1+δ3 (δ1=F/k1, and δ3=F/k3).

When the main mover140A presses the first sub-mover181A toward the first stator110A, the second sub-mover182A does not move, and the displacement of a second spring172A and the displacement of the fourth spring174A do not change.

The second sub-mover182A is disposed between the second stator120A and the main mover140A, and moves along the linear guide130A. The second sub-mover182A may have the same shape as or a different shape from the first sub-mover181A, and the linear guide130A passes through the second sub-mover182A along the edge thereof and the movement guide150A passes through the inside of the second sub-mover182A.

In an embodiment, the second sub-mover182A may divide an area between the second stator120A and the main mover140A. For example, the second spring172A may be disposed between the second sub-mover182A and the main mover140A, and the fourth spring174A may be disposed between the second sub-mover182A and the second stator120A.

Each of the second spring172A and the fourth spring174A may be wound around the outer circumferential surface of the movement guide150A, and both ends of each of the second spring172A and the fourth spring174A may be free ends that are not fixed.

Accordingly, as shown inFIG.8, when the movement guide150A pulls the main mover140A toward the second stator120A, the second spring172A positioned between the main mover140A and the second sub-mover182A is compressed while the main mover140A moves along the movement guide150A. At the same time, the fourth spring174A positioned between the second sub-mover182A and the second stator120A may also be compressed, thereby generating a reaction force against a load applied to the control surface CS by the actuator400.

In an embodiment, the second spring172A and the fourth spring174A may have different elastic moduli. For example, the second spring172A may have an elastic modulus k2, and the fourth spring174A may have an elastic modulus k4. Accordingly, when the main mover140A presses the second spring172A and the fourth spring174A with a force F, the total displacement δ satisfies δ2+δ4 (δ2=F/k2, and δ4=F/k4).

When the main mover140A pulls the second sub-mover182A toward the second stator120A, the first sub-mover181A does not move, and the displacement of the first spring171A and the displacement of the third spring173A do not change.

In an embodiment, the first spring171A and the second spring172A may have the same elastic modulus, and the third spring173A and the fourth spring174A may have the same elastic modulus.

As described above, the control surface load simulation apparatus10according to the present embodiment includes the reaction force providing structure100A including two stages, and thus may more precisely provide a reaction force according to the displacement of the control surface CS. Therefore, the control surface load simulation apparatus10may more precisely simulate a load applied to the control surface CS.

FIG.9illustrates a reaction force providing structure100B according to another embodiment of the present disclosure.

The control surface load simulation apparatus10according to the present embodiment may include the reaction force providing structure1008. The reaction force providing structure100B may further include a plurality of sub-movers and springs, as compared to the reaction force providing structure100A according to the above-described embodiment. Other components of the reaction force providing structure100B may be the same as other components of the reaction force providing structure100A, and detailed descriptions thereof are omitted.

As shown inFIG.9, the reaction force providing structure100B according to the present embodiment may further include a third sub-mover183B, a fourth sub-mover184B, a fifth spring175B, and a sixth spring176B.

The third sub-mover183B is disposed between a first stator110B and a first sub-mover181B, and moves along a linear guide130B. The third sub-mover183B has the same shape as or a different shape from the first sub-mover181B, and the linear guide130B passes through the third sub-mover183B along the edge thereof and a fixed guide160B passes through the inside of the third sub-mover183B.

In an embodiment, the third sub-mover183B may divide an area between the first sub-mover181B and the first stator110B. For example, the first sub-mover181B, the third sub-mover183B, and the first stator110B may be sequentially disposed along the right side of a main mover140B. Also, a first spring171B may be disposed between the main mover140B and the first sub-mover181B, a third spring173B may be disposed between the first sub-mover181B and the third sub-mover183B, and a fifth spring175B may be disposed between the third sub-mover183B and the first stator110B.

The first spring171B, the third spring173B, and the fifth spring175B are each wound around the outer circumferential surface of the fixed guide160B, and both ends of each spring may be free ends that are not fixed.

Accordingly, as shown inFIG.9, when a movement guide150B presses the main mover140B toward the first stator110B, the first spring171B positioned between the main mover140B and the first sub-mover181B is compressed while the main mover140B moves along the fixed guide160B. At the same time, the third spring173B positioned between the first sub-mover181B and the third sub-mover183B and the fifth spring175B positioned between the third sub-mover183B and the first stator110B may also be compressed to generate a reaction force against a load applied to a control surface CS by an actuator400.

In an embodiment, the first spring171B, the third spring173B, and the fifth spring175B may have different elastic moduli. For example, the first spring171B may have an elastic modulus k1, the third spring173B may have an elastic modulus k3, and the fifth spring175B may have an elastic modulus k5. Accordingly, when the main mover140B presses the first spring171B, the third spring173B, and the fifth spring175B with a force F, the total displacement δ satisfies δ1+δ3+δ5 (δ1=F/k1, δ3=F/k3, and δ5=F/k5).

When the main mover140B presses the first sub-mover181B and the third sub-mover183B toward the first stator110B, the second sub-mover182B and the fourth sub-mover184B do not move, and the displacement of the second spring172A and the displacement of the fourth spring174B do not change.

The fourth sub-mover184B is disposed between the second stator120B and the second sub-mover182B, and moves along the linear guide130B. The fourth sub-mover184B has the same shape as or a different shape from the second sub-mover182B, and the linear guide130B passes through the fourth sub-mover184B along the edge thereof and the fixed guide160B passes through the inside of the fourth sub-mover184B.

In an embodiment, the fourth sub-mover184B may divide an area between the second sub-mover182B and the second stator120B. For example, the second sub-mover182B, the fourth sub-mover184B, and the second stator120B may be sequentially disposed along the left side of the main mover140B. Also, a second spring172B may be disposed between the main mover140B and the second sub-mover182B, a fourth spring174B may be disposed between the second sub-mover182B and the fourth sub-mover184B, and a sixth spring176B may be disposed between the fourth sub-mover184B and the second stator120B.

The second spring172B, the fourth spring174B, and the sixth spring176B are each wound around the outer circumferential surface of the movement guide150B, and both ends of each spring may be free ends that are not fixed.

Accordingly, as shown inFIG.10, when the movement guide150B pulls the main mover140B toward the second stator120B, the second spring172B positioned between the main mover140B and the second sub-mover182B is compressed while the main mover140B moves along the movement guide150B. At the same time, the fourth spring174B positioned between the second sub-mover182B and the fourth sub-mover184B and the sixth spring176B positioned between the fourth sub-mover184B and the second stator120B may also be compressed to generate a reaction force against a load applied to a control surface CS by an actuator400.

In an embodiment, the second spring172B, the fourth spring174B, and the sixth spring176B may have different elastic moduli. For example, the second spring172B may have an elastic modulus k2, the fourth spring174B may have an elastic modulus k4, and the sixth spring176B may have an elastic modulus k6. Accordingly, when the main mover140B presses the second spring172B, the fourth spring174B, and the sixth spring176B with a force F, the total displacement δ satisfies δ2+δ4+δ6 (δ2=F/k2, δ4=F/k4, and δ6=F/k6).

When the main mover140B pushes the second sub-mover182B and the fourth sub-mover184B toward the second stator120B, the first sub-mover181B and the third sub-mover183B do not move, and the displacement of the first spring171A and the displacement of the third spring173B do not change.

In an embodiment, the first spring171B and the second spring172B may have the same elastic modulus, the third spring173B and the fourth spring174B may have the same elastic modulus, and the fifth spring175B and the sixth spring176B may have the same elastic modulus.

As such, the control surface load simulation apparatus10according to the present embodiment includes the reaction force providing structure100B including a three-stage spring, and thus may more precisely provide a reaction force according to the displacement of the control surface CS. Therefore, the control surface load simulation apparatus10may more precisely simulate a load applied to the control surface CS.

FIG.10illustrates a reaction force providing structure100C according to another embodiment of the present disclosure.

The control surface load simulation apparatus10according to the present embodiment may include the reaction force providing structure100C. The reaction force providing structure100C may further include a plurality of sub-movers and springs, as compared to the reaction force providing structure100B according to the above-described embodiment. Other components of the reaction force providing structure100C may be the same as other components of the reaction force providing structure1008, and detailed descriptions thereof are omitted.

As shown inFIG.10, the reaction force providing structure100C according to the present embodiment may further include a fifth sub-mover185C, a sixth sub-mover186C, a seventh spring177C, and an eighth spring178C.

The fifth sub-mover185C, a third sub-mover183C, and a first sub-mover181C are sequentially disposed toward the right with a main mover140C in the center. Also, a first spring171C is disposed between the main mover140C and the fifth sub-mover185C, a third spring173C is disposed between the fifth sub-mover185C and the third sub-mover183C, a fifth spring175C is disposed between the third sub-mover183C and a first sub-mover181C, and the seventh spring177C is disposed between the first sub-mover181C and a first stator110C.

Also, the sixth sub-mover186C, a fourth sub-mover184C, and a second sub-mover182C are sequentially disposed toward the left with the main mover140C in the center. Also, the second spring172C may be disposed between the main mover140C and the sixth sub-mover186C, a fourth spring174C may be disposed between the sixth sub-mover186C and the fourth sub-mover184C, a sixth spring176C may be disposed between the fourth sub-mover184C and the second sub-mover182C, and the eighth spring178C may be disposed between the second sub-mover182C and a second stator120C.

The operating state of the reaction force providing structure100C is similar to those of the reaction force providing structures100,100A, and100B, and detailed descriptions thereof are omitted.

That is, when displacement occurs in the control surface CS and the movement guide150C presses the main mover140C toward the first stator110C, the first sub-mover181C, the third sub-mover183C, and the fifth sub-mover185C moves to the right and the first spring171C, the third spring173C, the fifth spring175C, and the seventh spring177C are compressed to form a reaction force.

In this case, both ends of each of the second spring172C, the fourth spring174C, the sixth spring176C, and the eighth spring178C are not fixed, and displacement does not occur.

Also, when the movement guide150C pulls the main mover140C toward the second stator120C, the second sub-mover182C, the fourth sub-mover184C, and the sixth sub-mover186C move to the left and the second spring172C, the fourth spring174C, the sixth spring176C, and the eighth spring178C are compressed to form a reaction force.

In this case, both ends of each of the first spring171C, the third spring173C, the fifth spring175C, and the seventh spring177C are not fixed, and displacement does not occur.

In an embodiment, the first spring171C to the eighth spring178C may have different elastic moduli k1 to k8, respectively.

As described above, the control surface load simulation apparatus10according to the present embodiment includes the reaction force providing structure100C including a four-stage spring, and thus may more precisely provide a reaction force according to the displacement of the control surface CS. Therefore, the control surface load simulation apparatus10may more precisely simulate a load applied to the control surface CS.

Although not shown in the drawings, the control surface load simulation apparatus10according to an embodiment of the present disclosure may include a reaction force providing structure including five or more springs. Alternatively, the control surface load simulation apparatus10according to an embodiment of the present disclosure may include a reaction force providing structure in which a plurality of springs are connected in parallel.

The control surface load simulation apparatus according to an embodiment of the present disclosure may simulate a load applied to a control surface by using only one actuator.

The control surface load simulation apparatus according to an embodiment of the present disclosure includes a reaction force providing structure that generates a reaction force with respect to a load applied by one actuator to a control surface, and thus, there is no need to synchronize the timings and magnitudes of loads applied by a plurality of actuators. In addition, the reaction force providing structure including a plurality of springs may generate a reaction force while responding immediately according to the displacement of the control surface.

The control surface load simulation apparatus according to an embodiment of the present disclosure may accurately simulate a control surface load even with a relatively simple configuration, and maintenance and repair of the control surface load simulation apparatus are very easy.

It should be understood that embodiments described herein should be considered in a descriptive sense only and not for purposes of limitation. Descriptions of features or aspects within each embodiment should typically be considered as available for other similar features or aspects in other embodiments. While one or more embodiments have been described with reference to the figures, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the following claims.

Specific technical content described in the embodiment is an embodiment and does not limit the technical scope of the embodiment. In order to concisely and clearly describe the description of the present disclosure, descriptions of conventional general techniques and configurations may be omitted. In addition, the connection or connection member of the lines between the components shown in the drawings illustratively shows functional connections and/or physical or circuit connections, and in an actual device, various functional connections, physical connections that are replaceable or additional It may be expressed as a connection, or circuit connections. In addition, unless there is a specific reference such as “essential” or “importantly”, it may not be a necessary component for the application of the present disclosure.

The use of the terms “a” and “an” and “the” and similar referents in the detailed description and the claims are to be construed to cover both the singular and the plural, unless specifically defined otherwise. Furthermore, recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. Finally, the steps of all methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The embodiments are not limited to the above-described order of the steps. The use of any and all examples, or exemplary language (e.g., “such as”) provided herein, is intended merely to better illuminate the inventive concept and does not pose a limitation on the scope of the inventive concept unless otherwise claimed. Numerous modifications and adaptations will be readily apparent to those skilled in this art without departing from the spirit and scope of the present disclosure.