bluuebunny/crossref_metadata_2025_split huggingface dataset:
Simulation Study on Microstructure of Magnetic Field Assisted ECAM
Authors: Li Liangliang , Ma Baoji , Cao Jinkui , Chen Bangbang , Li Zhichao 
Published: June 2023

Abstract
Electrochemical additive manufacturing (ECAM) technology is a non-thermal metal additive manufacturing technology that is widely used in microfabrication. The quality of additively manufactured moulded parts can be improved by applying magnetic fields with unknown effects of process parameters on additively manufactured microstructures. Therefore, a multi-physical field coupling model for magnetic field-assisted ECAM was developed. The results show that increasing the applied voltage and magnetic field strength can increase the cathode current density and improve the deposition rate and deposition height, but after the applied voltage increases to 4 V, the ion concentration decreases too fast and the concentration polarization occurs, which affects the deposition rate instead. The ion flux reached the maximum at the magnetic field strength of 0.2T. However, the cathode current density is affected by the electrode gap, and the deposition rate decreases with the increase of the electrode gap, and the deposition rate stabilizes after the electrode gap increases to 50 μm. The increase in current density with increasing electrode size may be related to the applied magnetic field.
Study on Hydrophobic Surface of Magnesium Alloy Prepared by Femtosecond Laser and its Corrosion Resistance
Authors: Cao Jinkui , Ma Baoji , Li Liangliang , Li Xiangyu 
Published: June 2023

Abstract
Due to their excellent barrier and shielding effects, superhydrophobic magnesium alloy surfaces are increasingly interested in corrosion protection. This paper proposes a method for producing a stable superhydrophobic surface by laser scanning ablation of AZ31B magnesium alloy on its surface. The prepared layered micro-nanoemulsion convex structure with a lotus-like surface exhibited excellent superhydrophobicity after modification by stearic acid, and the static water droplet contact angle reached 163°. After 90 days in outdoor air, droplet pressure-based experiments show that the superhydrophobic surface possesses a long-term stable Cassie state. In addition, The superhydrophobic surface showed excellent corrosion resistance against magnesium alloy in a Neutral 3.5 wt.% NaCl solution. The results of the dynamic potential polarization tests showed that the existence of a gas layer cavity on the lotus-like surface structure caused the corrosion current density of superhydrophobic AZ31B (3.86±1 uA/cm2) to decrease by 2 orders of magnitude compared with that of the extruded AZ31B (103±1 uA/cm2). We believe the proposed method is simple, efficient, and non-polluting, especially for medical magnesium alloys in the field of in vivo implant materials to slow down corrosion and promote clinical applications.
Thermodynamic Properties of the Textured Brake System Considering Multi-factor
Authors: Li Jiachen , Li Junning 
Published: June 2023

Abstract
The thermodynamic properties are related to the life of the brake system. The texturing technology is introduced into the brake system to construct different groove textures on the brake pad. The influence of multi-factor conditions on the thermodynamic properties of the brake systems is studied based on the Finite Element Method. The results suggest that the horizontal groove texture on the brake disc can make the temperature field and stress field distribution more uniform. With the increase in braking pressure and car speed, the thermodynamic properties of the brake disc show an upward trend. The temperature difference of the brake disc is less than 3°C. It is found that the construction of appropriate groove texture of the brake pad helps improve the working performance of the car brake system.
Lightweight Design of Shell Based on Finite Element Method
Authors: Cao Yu , Jia Feng , Gao Pan , Cao Yan 
Published: June 2023

Abstract
The shell structure design of modern spacecraft internal devices is developing towards lightweight, high-performance, and low-cost. In order to achieve a lightweight construction of the shell structure, this work takes the spacecraft shell as an optimization object. Under the premise of ensuring that the stiffness of the box meets the design requirements, the lightweight construction of the box adopts a post-design optimization method. First, the preliminary design of the model was conducted using SolidWorks, and then the transient dynamic analysis of the model was conducted. The results met the design requirements. Then, the topology of the model is optimized using ANSYS Workbench software, and the optimization results are improved based on assembly conditions. Finally, a transient dynamic analysis of the topology optimized model was performed and compared with previous results. It was found that the design requirements were still met, while the weight was reduced by about 36.8%. This achieved lightweight design of the shell, improved performance, and reduced costs.
Analysis of Milling Force and Optimization of Milling Trajectory for the NC Machining of Small Integral Impeller
Authors: Yao Hui , Li Jinpei , Bai Yu , Wang Zhiji 
Published: June 2023

Abstract
In order to reduce the deformation of small integral impeller and improve the surface quality of blade in the process of NC machining, the influence of trajectory parameters on the milling force in the process of impeller NC finishing is studied and the orthogonal experiment with trajectory parameters as the main influencing factor is designed. In Deform 3D process simulation system, the physical dynamic simulation of NC milling force is carried out, the influence rules of the trajectory parameters on the milling forces in X, Y and Z directions are analysed, and then the range analysis method is used to optimize the simulation data to get the optimal combination of the trajectory parameters. Taking the actual production of a small integral impeller as an example, the trajectory parameters before and after optimization are respectively applied to 5-axis NC machining and the data of product inspection show that the optimized trajectory parameters not only improve the rigidity of the blade root and reduce the overall deviation of the blade, but also verify that the small milling force is obtained after the optimization of the trajectory parameters for the finish machining aiming at the surface quality and the optimization scheme of the trajectory parameters proposed in this paper is feasible.
Gear Profile Measurement Based on Thin Line Structured Light
Authors: He Na , Wang Jianhua , Shang Zhiyi 
Published: June 2023

Abstract
In order to achieve the high precision 3D measurement of gear tooth profile, a telecentric optical measurement system with large FOV (field of view), WD (working distance) and measuring range was proposed, the system was applied to the gear tooth profile measurement experiment and obtained a good effect. Firstly, the composition and the principle of the system were introduced. The lights of projection and imaging with an angle of 45° from the normal line of the measured surface can reduce the requirement of DOF (depth of field) of the imaging objective lens. Secondly, in combine with the application background of small modulus gear tooth profile measurement, the magnification, NA (numerical aperture) and other optical parameters were calculated, the optical system was constructed and the system performance parameters are listed. Then, the calibration model of the system was demonstrated and the calibrations of depth pixel resolution and horizontal pixel resolution were completed through experiments. Finally, an involute artifact with a modulus of 2.9992mm and a total tooth profile deviation of 1.1μm was measured. The results show that the deviation of the total tooth profile measured is about 2μm, which is consistent with the calibration curve of the involute artifact.
Kinematic Modelling Analysis and Simulation of 6-DOF Manipulator
Authors: Zhao Jizhuo , Wan Hongqiang , Li Wei , Han Quanli 
Published: June 2023

Abstract
To test the rationality of the structure design of the six-degree-of-freedom manipulator, kinematics modelling and simulation were carried out. Firstly, the manipulator’s 3D model is created using SW platform. Secondly, the mathematical model of the manipulator is created according to the DH parameter method to complete the forward kinematics theoretical analysis. Finally, the reachable space of the end effector is simulated and an arc trajectory Simulation results indicate that the reachable space of the manipulator has no obvious cavity and the set trajectory curve is smooth without jumping points, the structure of the 6-DOF manipulator meets the design requirements.
Dynamic Simulation of Micro-flyer Shocked Detonation
Authors: Cheng Junxia , Tian Bo , Li Siyu , Li Xinyu , Wu Shenjiang 
Published: June 2023

Abstract
The shocked detonation technology of microflyer is safer and more stable via detonation. By using Ansys software to build a 3-D model of the flyer driven by explosive detonation, the mechanism of action, deformation and stress change were studied and analyzed. The shape and speed of the microflyer, when it strikes the main explosive, are controlled by the material, tilt-angle, and distance between the flyer and main explosive. The results showed that the microflyer needs 7.0 μs to reach 2490 m/s, which is its maximum speed. This study will provide a feasible method and reliable parameters for the safe and stable detonation of explosives.
Numerical Control Machining Process Parameters of Nickel-based Alloy Casing
Authors: Wang Zexiao , Zhang Xinyun , Wang Ning , Li Jintao , Wang Pengye 
Published: June 2023

Abstract
As a major component of engine, aviation casing is usually machined from superalloy blanks because it needs to withstand high temperature, high pressure and other environments during use. Surface integrity indexes such as surface roughness and residual stress will seriously restrict the performance and service life of such parts. In this paper, by studying the processing technology of the casing, Deform-3d software was applied to conduct three-dimensional dynamic modelling for the rough milling process of the casing made of nickel-based alloy GH4169, and the milling simulation analysis was carried out. With milling force and milling temperature as evaluation indexes, the variation rules of force and temperature under different coaxial and radial milling depths were obtained through simulation analysis. At the same time, the single factor optimization was carried out for different coaxial and radial milling depths according to evaluation indexes, and a set of optimal milling parameters were obtained, which provided theoretical guidance for practical machining.
Research on Deep Hole Machining Based on Aircraft Landing Gear
Authors: Cao Yan , Yang Qixin , Huang Liang , Tian Chunlei , Wang Panfeng , Wang Chenfei , Cai Keping 
Published: June 2023

Abstract
A landing gear is the main large bearing structural part of an aircraft. The change of material and structure makes the processing of the aircraft landing gear more difficult. Aiming at the structural characteristics of the aircraft landing gear deep cavity, the deep hole processing technique of a 300M steel workpiece was studied. A separated NC deep hole drilling and boring machine was adopted to process the workpiece. Cavity hole special cutting tools were introduced. Fixture and sealing mode were improved. NC programs were optimized. Thus, the processing problems of deflection, vibration, chip breaking and chip removal were solved. The workpiece with width to diameter ratio greater than 10 and surface roughness of hole is 3.2 μm was successfully machined by machining experiment, and the high efficiency machining of deep hole of ultra-high strength steel was realized. Thus the theoretical foundation is laid for the machining of complex cavity deep holes for cutting high-strength alloy materials.
Research and Implementation of Gear Measurement Based on Digital Twin Technology
Authors: Tang Yin , Wang Jianhua 
Published: June 2023

Abstract
The digital twin technology of the gear measurement center is a digital space mapping of the mechanical structure, workpiece performance and measurement process of the traditional gear measurement center, which is a gear measurement center designed according to the physical gear measurement center, but can independently complete the virtual measurement and function, which belongs to the digital software system. This paper studies the digital twin implementation steps of gear measurement center from the perspective of achievability, uses Opengl to develop graphics library, spatial geometry algorithm and digital integral interpolation algorithm, successfully establishes the digital twin gear measurement center model in VS2019, and conducts virtual measurement verification, obtains reliable data, verifies that the digital twin gear measurement center can complete the measurement process independently, solves the practical application problem of digital twin gear measurement center, and provides ideas for the development of virtual measurement.
Flexibility Analysis of One-dimensional Compliant Guiding Mechanism
Authors: Qiang Huaibo , Huang Qiang , Zhao Denghua 
Published: June 2023

Abstract
To realize the requirements of the precision probe for the translational guidance of compliant mechanism, the expression of the movement screw of the parallelogram guide mechanism is proposed. The flexibility matrix is used to study the influence of the geometric structure and size of flexible units on the performance of the guide mechanism, and the finite element analysis is used for simulation. The results show that the flexibility matrix model is in good agreement with the simulation results, and the maximum relative error is 6.33%. The motion screw method provides a new idea for the study of the motion characteristics of compliant mechanisms.
Research on Self-driving Vehicle Path Tracking Adaptive Method Based on Predictive Control
Authors: Gao Huihui , Song Xiaohua , Gao Song 
Published: June 2023

Abstract
The autonomous vehicles can improve the traffic utilisation and ensure the safe driving. Thus, the relative analysis is one hot research topic nowadays. The path tracking control system is one key link for the quick and stable tracking of target paths of autonomous vehicles. For analyzing the route tracing process of the Self-driving vehicles under complex working conditions, this paper proposes an adaptive model prediction controller. The controller chooses a vehicle dynamics model and incorporates a fuzzy adaptive control method into the model predictive control algorithm. Through the fuzzy adaptive control method, the weight of the objective function in the model predictive control algorithm is adaptively optimized to improve the control effects. The joint simulation tests are applied in the CarSim, MATLAB and Simulink software. Compared with the general model predictive controller, the outcomes indicate that the conceptualized controller can effectively reduce the tracking errors and ensure safe driving.
Study on Driving Characteristics of MEMS Electromagnetic Coil Using in the UAV
Authors: Xue Jingyun , Li Hanshan , Zeng Tao , Liu Xuebin , Zhang Yinhuan 
Published: June 2023

Abstract
The miniaturization and swarm design of unmanned aerial vehicle (UAV) is a research hotspot. For the current electromagnetic drive mode, the electromagnetic drive device is too large to be integrated in the current technology. This paper presents a new micro electromagnetically driven MEMS driving device, in which the electromagnetic coil is small in size, with a large electromagnetic force. We firstly designed and calculated the geometric structure of the electromagnetic coil, and analysed the model using COMSOL multiphysics field simulation software. We then carried out a parametric simulation of the electromagnetic coil. The simulation result shown that the error between theoretical calculation and the simulation of the mechanical and electrical properties of the electromagnetic coil was less than 2% under the same size. It provides an idea for UAV miniaturization design.
A Novel Method to the Aging Feature Extraction of Viscoelastic Sandwich Structures
Authors: Shi Xiaowei , Qu Jinxiu , Guo Jinzhu , Huang Jiaqi , Bai Yumei , Cao Wei 
Published: June 2023

Abstract
The viscoelastic sandwich structure exhibits highly nonlinear dynamic characteristics, and minimal changes in signal caused by aging state alterations, thus posing a challenge for extracting its aging characteristics. A method is proposed for extracting aging features from viscoelastic sandwich structures using variational mode decomposition (VMD) and permutation entropy (PE). First, the original dynamic response signal is decomposed by VMD to acquire several intrinsic mode functions (IMF). Then the permutation entropy characteristics of each IMF are calculated. The research results show that there are obvious differences in the distribution of permutation entropy corresponding to each IMF component, which indicates that the permutation entropy feature extracted based on the variational modal decomposition is more susceptive to the change of the aging state of the structure, thus verifying the availability of this method for feature extraction.
Individualized Analysis of the Stent Implantation Performance Based on the Vascular Reconstruction
Authors: Shao Feihu , Chen Hua , Liu Zheng 
Published: June 2023

Abstract
More and more researchers pay attention to the method of using stents treats the intracranial aneurysms through the way of minimally invasive surgery. Due to individual differences between patients and complexity of stenosis lesion, there is not an acknowledged criterion on stenting scheme, which mainly depends on clinicians’ experience. Otherwise, inappropriate stenting scheme may lead to severe complications such as intravascular restenosis after a certain period of time after surgery. By means of simulation to explore this problem is a simple and effective way, but most simulation studies only focus on the design of stent structure and ignore the importance of building a real blood vessel model. The use of idealized vascular model will inevitably affect the simulation accuracy, and it leads to a large difference between the theoretical effect and the actual effect of the stent. Therefore, reconstructing the accurate blood vessel model is the crucial work in this study. In order to research the mechanical properties of stents, the model is constructed by the OpenCASCADE kernel. It provides reference for assessing surgical plan and illuminating biomechanical mechanism of in-stent restenosis. At the same time, it may contribute to novel stent development and optimization design, assist doctor to make better surgical scheme as well as predict surgical results.
Two-frame Phase-shifting Interferometry by Minimizing the Residual-background
Authors: Shan Zeyuan , Du Hubing , Hu Bingqing , Feng Leijie 
Published: June 2023

Abstract
Demodulation of two random phase shift fringe patterns is an ill-posed problem. Existing methods often need to remove the fringe background by pre filtering in the frequency, which takes more time, and have a great influence on the phase reconstruction because of the frequency aliasing, these limits the application of two frame phase-shift interferometry in actual production. In this case, this paper based on the idea of Statistical Average, proposes a Statistical Average technology for phase extraction of two frame randomly phase-shifted interferograms from rough to precision without pre filtering. The proposed methods based on minimizing the residual background, firstly estimates the average background by calculating the average for all pixels, and then adding and subtracting the two frames with the background removed. The phase shift and phase are solved by using the properties of trigonometric functions. Then the amplitude is solved using the obtained phase and phase shift. Finally, the background is solved and the original light intensity is updated. Compared with existing methods, our method has the advantages such as rapid convergence and quick calculation by offering the right initial value. The accuracy of my proposed method is approximately double that of existing methods. Simulation and experimental results show that our method is a practical method of two frame phase shift interferences, both simple and reliable.
Optimization of the Clamping Layout of Thin-walled Parts with Partition Frame
Authors: Dong Jian , Zhang Xinyun , Xu Chaopeng , Geng Nan 
Published: June 2023

Abstract
When the thin-walled parts are machined, they need to be clamped and positioned. By using finite element method (FEM), the deformation law of workpiece clamping caused by single clamping layout parameter can be gained. However, it is impossible to express the relationship between the clamping deformation and the clamping layout parameter by FEM when multiple clamping layout parameters are taken into account simultaneously. Therefore, ABAQUS is used to establish a three-dimensional finite element model for the clamping layout of thin-walled part. And by combining the milling force and the static balance equation, the appropriate clamping force value can be obtained. Then it is convenient to obtain the initial data sample of genetic algorithm. Genetic algorithm is used to optimize the clamping layout of frame type of thin-walled part and obtains the optimal layout. The minimum value of maximum clamping deformation is 15.50 µm. In the field of thin-walled part machining, the research results of this paper have an important guiding role in the rational design of the clamping layout scheme.
Motion and Trajectory Planning and Simulation of a High Frequency Transformer Winding Robot Pose
Authors: Zhao Peizhi , Qian Xueming , Feng Huan 
Published: June 2023

Abstract
The application of high-frequency transformers is related to the development of all walks of life in the national economy and people’s livelihood, among which the fast and agile performance of winding knots in the system operation platform is crucial to the production efficiency and quality assurance of transformers. Aiming at the problems of slow attitude movement and trajectory planning time and complicated path trajectory points in the offline system of robots in the traditional production line, this paper proposes an optimization trajectory optimization algorithm based on the combination of accurate unit scanning and Cartesian spatial trajectory planning. When the known effective working space range is determined, the end effector of the robotic arm conducts trajectory search according to a specified time series after obstacle avoidance to find an optimal trajectory that meets the user parameters. At the same time, for the polyline trajectory, this paper uses the multi-dimensional interpolation method, that is, the adopted Cartesian space trajectory planning for smooth processing. Finally, through the MatlabRobot toolbox to end effector arm end angular velocity, angular acceleration for simulation research, according to the simulation results, it can be seen that the arm end angular velocity in three-dimensional space is controlled at −1m/s ~ 1m/s, angular acceleration is basically stable in the Z axis, and controlled in the X axis at −3m/s
2 ~1m/s2, so the control of the fusion algorithm on the motion and trajectory planning of the robot system is reasonable, and it also meets the quantitative needs of users.