bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design of the AGV Trolley for Transporting the Drip Irrigation Belt Roll
Authors: Meng Fanzhao , Wei Daifeng 
Published: March 2021

Abstract
Automatic Guided Vehicle (AGV) is a kind of driverless transport vehicle which can carry, store, and load and unload goods. It can follow the preset path, complete the task, and has the functions of obstacle avoidance and safety protection, which is widely used in automatic production system. This paper introduces the design and development of AGV trolley to realize the automatic production transformation of drip irrigation belt production line for agricultural irrigation. According to the design requirements of the drip irrigation belt rolling AGV trolley for the transformation of the production line, based on the previous design experience and technology of the automatic guided trolley, from the actual needs of engineering application, combined with the path guidance technology, embedded control system, sensor detection technology, module control and system control management technology, a tape guided AGV trolley with lifting module is designed, which realizes the functions of rolling, transporting and storing of drip irrigation belt, and the production efficiency of drip irrigation belt is improved.
Research on the application of single point conductive adhesive in the electrical interconnection of display screen
Authors: Ming Zihao , Ma Xiao Song , Wu Keye , Tang Changhua 
Published: March 2021

Abstract
This paper studies the application of the single point conductive adhesive in the electrical interconnection of the display screen. The two ends of the electrical interconnection of the single point conductive adhesive are welding form and contact form respectively, and the volume is very small. The single point conductive adhesive can be soldered on the circuit board together with the circuit components, and the display screen can also be solderless flexible interconnection. However, because there is no suitable packaging form of display screen in the market at present, the display screen is modified in this study, and the display screen and circuit board are interconnected with single point conductive adhesive. The working effect of display screen and the power change of circuit board after interconnection with single point conductive adhesive are tested. The experimental results show that the display screen interconnected with single point conductive adhesive can work normally, the voltage of the interconnection point has a slight increase, and the input power of the circuit board has a slight increase. The experimental results show that the single point conductive adhesive can be used in the interconnection of display screen.
Workspace analysis and kinematics simulation of 6-DOF upper limb exoskeleton robot
Authors: Liu Hua Bin , Dai Zong Miao , Peng Xue Feng 
Published: March 2021

Abstract
In this paper, the outer non-humanoid robot 6-DOF upper limb bone as the research object, the establishment of a forward kinematics model of the robot be modeled, using the DH parameter method in Creo software to get the robot based on Monte Carlo Method Point cloud image of workspace. Based on ADAMS, the dynamic of the joint driving torque is solved, and the torque change curve of each joint during the vertical lifting of the arm is obtained. The simulation results show that the working space at the end of the six-degree-of-freedom upper-limb exoskeleton robot model can meet the working requirements, and the joint torque is relatively small, which lays the foundation for the subsequent trajectory planning and drive device design of the upper-limb exoskeleton robot.
Design and implementation of distance measurement system based on FMCW technology
Authors: Yunhe Su , Jing Xiao , Qingchun Huang , Meili Wei 
Published: March 2021

Abstract
In this paper, the distance information is obtained according to the relationship between distance and beat frequency in FMCW ranging principle, the ranging process of sawtooth wave as frequency modulation signal is described in detail, and the causes of ranging error are analyzed briefly. The distance measurement system of simulation uses Matlab software to write, and the hardware ranging platform is built by DB77M24A6426V2 millimeter wave radar module. It is verified that the distance measurement system design in this paper achieves more accurate ranging in the short distance measurement, and provides a relatively simple ranging waveform, which provides a relatively powerful reference basis for the subsequent ranging system design and hardware selection.
Design of a Feeding Device for Penaeus Vannamei Breeding Pond
Authors: Mao Wenwu , Wang Zijie , Yan Hao , Wang Dengkui 
Published: March 2021

Abstract
At present, the mechanization of shrimp culture in China is still low, and most of them are artificially fed. Artificial feeding is not only labor-intensive, but also has the disadvantages of uneven feed throwing. In this paper, a feeding device for Penaeus Vannamei breeding pond is designed, which mainly includes guide trolley, support body, feeding rod, storage plate and storage bucket, the feeding efficiency of Penaeus Vannamei is improved.
Structural design of spiral blade of concrete mixer truck
Authors: Zhao Lu-Yan , Li Peng , Liu Fu-Xiu 
Published: March 2021

Abstract
This article takes a concrete mixer truck actually produced by an enterprise as an example. According to the functions of the three-part spiral blades of the front cone, cylinder, and tail of the mixing drum, combined with theoretical knowledge, the Pro/E software is used to realize the re-realization of the blade spiral. design. A spiral line that is more in line with actual working conditions is derived, which provides a theoretical basis for the design and modeling of spiral blades of concrete mixer trucks.
Angle-resolved Micro-Raman, a prospectively automatic method of stress measurement for electronic packaging of semiconductor
Authors: Chang Ying , Xiao Aixia , Zhao Jiaxin , Ma Lulu , Meng Tian , Qiu Wei 
Published: March 2021

Abstract
Residual stress introduced during electronic packaging is one of the core factors affecting the efficiency, quality and reliability of advanced semiconductor devices. Therefore, it is important to reduce negative effect, even to increase positive influence through regulating the magnitude and distribution of residual stress on semiconductor devices, requiring a non-destructive, non-contact and automatic on-line method for the measurement of the surface and internal residual stress. This paper presented an angle-resolved Micro-Raman method for the measurement of the residual stress induced by electronic packaging of semiconductor.
Deviation Analysis of Pitot Static Probe Airflow Receiving for Civil Aircraft
Authors: Zhao Jiejue 
Published: March 2021

Abstract
The pitot static probe provides the atmospheric pitot pressure and static pressure information for the Air Data system for calculating flight parameters for flight. The installation angle of the f pitot static probe directly affects the accuracy of its airflow receiving, and directly affects the judgment of the aircraft and the crew. In this paper, we have conducted an in-depth analysis of the airflow receiving deviation of the pitot static probe, and simulated the large changes in flight parameters of a certain type of aircraft under different installation deviation angles. Finally, commonly used deviation treatment suggestions are given for the installation deviation of the full static pressure probe of a certain type of aircraft.
Modeling and simulation of surface topography in five-axis ball end milling
Authors: Wei Juan , Hou Xiaodong , Sun Chao 
Published: March 2021

Abstract
Computer simulation can be used to predict the machined surface topography and roughness, which can provide a basis for the reasonable selection of cutting parameters and tools. To do so, the motion trajectory equation of ball end milling cutter was established based on homogeneous coordinate transformation matrix. On this basis, a 3D surface topography simulation algorithm based on workpiece meshing is constructed. Finally, the influence laws of feed rate per tooth, path internal and initial phase angle on surface topography were analyzed by simulation. The conclusion has a good guiding significance for the surface quality control and adjustment of machining parameters in actual production.
In Situ Synthesized Graded TiC Particulate Reinforced Ni-based Composite Coating Prepared by Laser Cladding
Authors: Xu Lifeng , Xiao Rui , Qu Guang , Wang Dongsheng 
Published: March 2021

Abstract
Pure titanium (Ti) which had been processed by high energy ball milling, graphite and Ni60A self-melting alloy composite powder were used as the cladding materials. A test on the in situ synthesized graded TiC particulate reinforced Ni-based composite coating was carried out after presetting of the composite powder on the 42CrMo alloy structured steel base surface. Morphologies, tissue structures and microhardness values of samples were investigated by an optical microscope (OM), scanning electron microscope (SEM) and microhardness tester. Results show that in situ synthesis of TiC reinforced particulates is realized with pure Ti and graphite powder under laser cladding. TiC particulates which have a small density presents a graded distribution of less at lower and more at upper of the coating due to the floating effect in a melting pool. Therefore, in situ synthesized graded TiC particulate reinforced Ni-based composite coating was gained. Moreover, TiC particulates cluster and grow in the melting pool due to collision and bonding of TiC particulates in the floating process. Compared to TiC particulates at lower part of the coating, the TiC particulates at upper part of the coating possess a higher proportion of clusters and growth phenomena. The volume percentage of TiC particulates at middle and bottom of the composite coating is lower than 5%, while volume percentage of TiC particulates on the coating surface is no higher than 25%. Similar with distribution pattern of TiC particulates, microhardness of the composite coating is also high on surface and low deep layer of the coating.
Product Innovation Design Process Model Based on Knowledge Service
Authors: Zhang Kai , Guo Xin , Yu Miao , Chen Ling 
Published: March 2021

Abstract
With the advent of the era of knowledge economy, knowledge plays an increasingly important role in product innovation design. In order to help designers to acquire and apply knowledge in product innovation design process, a kind of model of product innovation design process based on knowledge service was proposed. Product innovation design was divided into several stages: requirement analysis, problem determination, problem solving and solution evaluating. And the mapping relationship between design process, service strategy and service knowledge was also analysed. Taking the designers as the main body of knowledge service, a knowledge service strategy supporting design process was proposed. In view of the different knowledge services required in different stages of product innovation design process, the forms and service strategies of knowledge in various stages of product design were studied step by step, and the product innovation design service composition model that conforms to the designer’s habits of mind was put forward. This method links the knowledge and design process in each stage of product innovation design process with the combination of innovation strategy and design knowledge, which is used to assist designers in tracking and applying the required knowledge resources for innovation design. Finally, a prototype system of product innovation design knowledge service was developed, and a design case of micro force measuring device was presented to demonstrate the practicability and validity of the proposed method.
High-Speed Wind Tunnel Twin-sting Adaptor Design and Verification for Commercial Aircraft
Authors: Liu Yang 
Published: March 2021

Abstract
Rear sting, Z sting, and fin sting supports are generally used to measure force and moment during high-speed wind tunnel tests for commercial aircraft, It is necessary to apply another support to obtain the sting interference. Twin sting support is the most appropriate way to get the sting interference due to less secondary interference, and the twin-sting adaptor is core part of twin-sting support, which directly affect the test data accuracy and test envelope. This work is to introduce design and verification of the twin-sting adaptor based on a commercial aircraft model, CAE was applied to analyze and evaluate the aerodynamics, strength and stiffness during the design of adaptor. The adaptor was finally verified in the high-speed wind tunnel testing, and testing data demonstrate that the design have less aerodynamics interference on the wing, and the accurate sting interference could be obtained. The design of twin-sting adaptor could offer a solution for commercial aircraft to carry out wind tunnel testing of sting interference and rear fuselage characteristics.
Damage Prevention Practices of Heating Loop Products for Space Remote Sensors
Authors: Yu Zhao 
Published: March 2021

Abstract
To provide effective protection of heating loop products for space remote sensors throughout the production test, causes of product damages and weak links were analysed, and some specific protection strategies were proposed. Firstly, a flexible protective coating which could be reused was designed. Secondly, the quality control department organized the production department and testing department of the product to formulate a full-link implementation scheme to assure continuous implementation of the proposed protection method in all links, including design, technique, inspection and test. This heating loop protection decreased the product damages significantly compared to those in the previous year. The total number of damaged heating loop products in one year decreased by 60% from 18 to 7. Damages of heating loop products during optical assembly, electric wiring, final assembly and transportation were controlled effectively. This study protects the manufacturing safety of heating loop products for spacecraft remote sensors.
Simulation study of T-shaped piezoelectric linear ultrasonic motor based on PZT piezoelectric ceramics
Authors: Li Shuiping , Li Ran 
Published: March 2021

Abstract
In this paper, the T-shaped structure of linear ultrasonic motor was studied by means of establishing a THREE-DIMENSIONAL model of mechanical structure through SolidWorks and completing relevant simulation analysis through ANSYS Workbench. The finite element simulation analysis consists of four part: i. modal analysis, it determines the working mode and ensures that the frequency difference between the two working modes is as small as possible; ii. Harmonic response analysis furtherly verifies that the resonant response occurs at the operating mode frequency; iii. transient dynamic analysis demonstrates that the motion trajectory of the motor stator driving foot meets the theoretical requirements of ellipse shape. iv. drive signal and prototype are tested to verify the simulation analysis.
Analysis and treatment of cracks in LPG spherical tank
Authors: Jiang Chengjun , Du Yannan , Zhang Xiaoli , Pan Weiguo 
Published: March 2021

Abstract
During the first periodic inspection of the LPG spherical tank, a crack was inspected when the inner shell was detected by fluorescent magnetic powder test. The cause of the crack was analyzed by macromorphology examination, chemical composition analysis, hardness test and metallographic examination. Analysis results show that unreasonable welding procedure, no preheating process, improper storage of weld rods result in martensite structure of the welded joint, welding residual stress and diffusible hydrogen, which is the typical characteristic of the welding cold crack. The repair measures are taken to solve the problem and reduce the hidden dangers.
Simulation Investigation of a Soft Hydraulic Artificial Muscle
Authors: Liu Jianbin , Zuo Siyang , Wang Litong , Zhang Yongqin 
Published: March 2021

Abstract
This paper presents a soft hydraulic artificial muscle (SHAM) design, which replaces the cylinder, rod and piston in traditional hydraulic cylinder with soft structures. The presented muscle has the advantages of high output force level and good adaptability to environment. Modelling and simulation are conducted after introducing the working principle of the SHAM. Simulation results show that the output force can be as large as 160N with 0.8MPa input pressure. The effect of mixed air into the working fluid has also been investigated and discussed. Above advantages make the SHAM perfect for applications such as exoskeletons.
Design of multilayer Marine transportation tooling for large wind turbine blades
Authors: Hu Jing , Liao Guomin , Hu Guichuan , Ren Jing 
Published: March 2021

Abstract
Aiming at the long-distance cross-sea transport of offshore wind turbines blades, and proposing a solution of multilayer marine transportation through the analysis of the characteristics and requirements of marine transport of blades. Designing a multilayer marine transportation tooling for the large wind power blade GW90 which is 90 meters long and weighs 32 tons. Designing the main structure to solve the problem of complicated and large load on blades, designing the connecting structure to solve the problem of stable connection between each multilayer tooling, designing the position structure to solve the problem of installation and positioning of blades and tooling, and using the finite element analysis method to verify the design. Finally, a multilayer offshore transportation tool with safe structure, clear function and feasible design is proposed, which provides new exploration and ideas for the efficient and safe transportation of offshore wind power blades.
Laser wireless energy supply system of high-potential monitoring equipment based on machine vision
Authors: Yu Huiling , Chen Zhongwei 
Published: March 2021

Abstract
Real-time monitoring of high-voltage power equipment is an important link to ensure the safe and stable operation of the power system. The independent power supply of the monitoring equipment can ensure that the monitoring data is stable and effective without being affected by the power grid. This paper designs and builds a laser wireless power supply system based on machine vision and tracking and targeting technology for the actual application needs of high-potential monitoring equipment in power grids. The article introduces the overall architecture of the laser wireless power supply system and elaborates on the control method and image processing strategy of the tracking and targeting unit. The article proves the feasibility of the scheme through experiments, and realizes the accurate matching of the position of the photovoltaic cell in the presence of background interference. The research results of this article can provide technical support for the energy supply of high-potential monitoring equipment of the power grid.
Competitive Adaptive Reweighted Sampling Method for Fault Detection
Authors: Xuan Wang , Wang Yanxue 
Published: March 2021

AbstractAccording to Darwin’s theory of evolution, a variable combination with the strongest correlation between selection process variables and quality indicators is developed. This is called competitive adaptive reweighted sampling (CARS). In this article, the absolute value of the partial least squares regression coefficient is used to assess the importance of each variable. Next, we select variables based on the regression coefficients of variables and quality indicators, including forced variable selection based on exponential decreasing function (EDF) and competitive variable selection based on adaptive reweighted sampling (ARS). Finally, we use cross-validation (CV) to select the subset with the lowest root mean square error of CV (RMSECV). The Tennessee-Eastman (TE) process is used to evaluate the performance of the proposed fault detection method. The results show that CARS can find the best combination of certain key variables, improving the fault detection capability of quality indicators.
Intelligent Siagnosis Algorithm for Bearing Faults Based on Vibration Potential Features and Affinity Propagation Clustering
Authors: Li Meng , Wang Yanxue 
Published: March 2021

Abstract
In order to achieve intelligent classification of bearing faults, after comparing a large number of mechanical fault signal features, this paper proposes a bearing intelligent diagnosis algorithm based on vibration potential energy feature extraction and AP clustering. The potential energy features are extracted from the multidimensional eigenmode function (IMF) of the vibration signal after the Complete Ensemble Empirical Mode Decomposition with Adaptive Noise (CEEMDAN), and after self-weighted feature selection, the Affinity Propagation Clustering (AP) algorithm is used to achieve accurate classification of unlabeled faulty bearings. After data validation, the method can be better applied to the fault classification of rolling bearings, and the performance is better than the traditional classification and diagnosis algorithm. The algorithm is used to guide intelligent fault diagnosis of unlabeled data and to improve the applicability of AP clustering algorithm in rotating machinery fault diagnosis.
Bending-fatigue performance of the dissimilar joints of Fe-Mn-Si memory alloy and 304 stainless steel
Authors: Liu Linlin , Zhao Tianxiang , Zhou Chao Yu 
Published: March 2021

Abstract
The dissimilar joints of Fe-17Mn-5Si-10Cr-5Ni memory alloy and 304 stainless steel were welded by 5 kw transverse flow CO2 laser. The fracture morphology, microhardness of the welding joint was analyzed by field emission scanning electron microscopy, micro hardness tester, and bending fatigue test. The results showed that the fracture location of dissimilar joint is in the welding joint, and the fusion zone to weld areas prone to stress concentration while the formation of cracks. The full cyclic fatigue fracture of dissimilar joints consisted of the extension zone and instantaneous fracture zone. In the former, there were fatigue striations, dissociation steps and some arc tearing ridges, showing typical quasi-cleavage brittle fracture characteristics, and in the latter, there were a lot of dimples, showing plastic fracture characteristics. The toughness of dissimilar joint is better than that of the 304 stainless steel joint.
Operation Performance Test of Aerospace Mechanical Pumps and Verification of Their Environmental Adaptation
Authors: Zhang Huandong , Yang Tao , Zhao Zhenming , Meng Qingliang , Zhang Ping 
Published: March 2021

Abstract
In this paper, one aerospace centrifugal pump with flowrates of 1~2g/s was developed which was applicable to the mechanically pumed two phase loop (MPTL) system. Moreover, an experimental test platform was built to test and verify the performances of pump. Besides, the environmental adaptation tests of the designed pump were verified. Results show that: 1) the flow rate and lift of the pump at the rated working point are 2.043g/s and 0.0517MPa, while the input power is only 9.92W. These can meet requirements of the design indexes. 2) The input power is only 4.71W under the two-phase operation state and this pump can transfer the heat of 240W, and the pump shows a very high energy efficiency ratio (EER). 3) The lift of designed pump is constant at specified rotation speed and it can assure the temperature stability of MPTL system. 4) This pump can meet the requirements of services in vibration, vacuum and thermal cycling environments.