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检索条件"机构=Mechatronics and Controls"

共 568 条记录，以下是1-10 订阅

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Research on a brushless DC motor control method based on double chopping width modulation 8

Research on a brushless DC motor control method based on dou...

引用

8th International Conference on Energy System, Electricity, and Power, ESEP 2023

作者： Zhao, Hongyu Cheng, Xiangli Yu, Jian Wang, Xin Dong, Yaguang Li, Shuang Beijing Institute of Precision Mechatronics and Controls Beijing China

ISBN: (数字)9781510679801

ISBN: (纸本)9781510679795

This paper aims to analyze and compare the impact of double chopping modulation and single chopping modulation on the torque ripple of a brushless DC motor. By utilizing the electromagnetic torque formula of the motor, the differences between the two modulation modes are calculated and compared. Simulation and experimentation are conducted to validate the accuracy of the theoretical calculations. © 2024 SPIE.

关键词： Brushless DC motors

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Influence and analysis of installation gap on mechanical test of servo actuator 3

Influence and analysis of installation gap on mechanical tes...

引用

3rd International Conference on Advanced Manufacturing Technology and Manufacturing Systems, ICAMTMS 2024

作者： Zhao, Lei Wang, Zeng Kan, Shixin Pan, Zhe Song, Enming Zhang, Lei Beijing Institute of Precision Mechatronics and Controls Beijing China

ISBN: (纸本)9781510681804

Based on the study background of the fracture of the guide bearing of the actuator ball screw pair after the servo mechanism was subjected to mechanical vibration and impact environmental tests, a finite element model of the servo actuator was established, and product failure was analyzed using a combination of theoretical calculation and simulation analysis. Mechanism analysis used finite element analysis to calculate the response results of the actuator guide bearing under actual excitation response. The results showed that due to the installation gap at the connection between the actuator and the fixture, the mechanical response magnitude of the specimen during the test was too large and the bearing fracture occurred under the action of excessive radial load. By improving the test fixture, the test verification was completed. © 2024 SPIE.

关键词： Fixtures (tooling)

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Research on Multi-axis Synchronous Test Technology based on GLINK Bus 2

Research on Multi-axis Synchronous Test Technology based on ...

引用

2022 2nd International Conference on Detection Technology and Intelligence System, DTIS 2022

作者： Yu, Zikou Shen, Li Liang, Yuchen Guo, Yunqi Li, Zhanye Zhang, Xian Kang, Ping Beijing Institute of Precision Mechatronics and Controls China

As a rocket engine for thrust vector control system of high reliability and redundancy, high precision, and the requirements of lightweight, servo system for test system can quickly test a certain level and fast data processing of the test location, transient, and frequency characteristic indexes, a rocket motor thrust vector control system using GLINK as control bus. Moreover, the first level servo is an all-in-one machine with four drives and controls, so the test system is required to have the ability to control and test four actuators simultaneously under the GLINK main line. This paper discusses the hardware knowledge of the test system based on the GLINK bus: GLINK bus technology, communication topology of GLINK station card and network card;software function of the test system;multi-axis synchronous test function, and synchronous data processing function developed by LabVIEW. © Published under licence by IOP Publishing Ltd.

关键词： Buses

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Study on Double-Resonant Characteristics of Load Simulation System for Electro-Hydraulic Servo Mechanism 7

Study on Double-Resonant Characteristics of Load Simulation ...

引用

2022 7th International Seminar on Computer Technology, Mechanical and Electrical Engineering, ISCME 2022

作者： Song, Enming Yin, Chuanwei Wang, Yaqi Chang, Dongyan Beijing Institute of Precision Mechatronics and Controls China

The electro-hydraulic servo mechanism and engine realize thrust vector control together. Due to the low natural frequency of the engine, the dynamic characteristics of the test process show the result of double-resonance. The load simulation system can improve the efficiency of production tests and replace the actual engine in the production process. This paper fully considers the resonant problem of the engine, gives the relevant structural design scheme and parameter adjustment method to the load simulation system, and tests and analyzes the resonant characteristics. It aims at changing the resonant characteristics of the load simulation system by designing and adjusting the connection stiffness and torsional stiffness to achieve the real load condition. © Published under licence by IOP Publishing Ltd.

关键词： Engines

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Design and Research of Automatic Press-mounting Equipment for Joint Bearing 3

Design and Research of Automatic Press-mounting Equipment fo...

引用

3rd International Conference on Electrical Engineering and Control Science, IC2ECS 2023

作者： Zhao, Lei Beijing Institute of Precision Mechatronics and Controls Beijing China

ISBN: (纸本)9798350382426

At present, the press mounting and rolling of servo mechanism matching joint bearings are mainly completed by manual press and bench drilling machine, and the rolling pressure value cannot be traced and the assembly quality consistency cannot be guaranteed;In order to improve the production efficiency of the workshop and the degree of automatic press-mounting equipment of the joint bearing is designed in this paper. Firstly, the whole structure of the equipment is designed, and the working principle of the equipment is introduced accordingly, Secondly, the key link of the equipment is studied, and the finite element analysis method is used to analyze the key parts of the equipment. The results show that the design in this paper can meet the actual requirements. In the end, experiments are carried out to verify and analyze. The development and application of this equipment is of great significance to improve the production efficiency of bearing pressing and rolling in workshop and to improve the consistency of product quality. © 2023 IEEE.

关键词： joint bearing press mounting production efficiency quality consistency rolling servo mechanism

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Design and Application of a Model-Based Intelligent Production System for Aerospace Servo Products 14

Design and Application of a Model-Based Intelligent Producti...

引用

14th International Conference on Reliability, Maintainability and Safety, ICRMS 2023

作者： Zhang, Xian Qiao, Yujing Li, Peiwen Beijing Institute of Precision Mechatronics and Controls Beijing China

ISBN: (纸本)9798350329988

This study introduces the pioneering "system flow model" to the production site of aerospace servo products. We applied a "five-dimensional integration" intelligent production system based on digital twin technology [1] and quality management theory. Through this, we achieved holistic planning, management, diagnosis, and re-optimization of production activities. The methodology addressed prevalent issues, including inadequate system management and control capabilities at production sites, underutilization of data, limited production information sharing, and over-reliance on personnel expertise. During implementation, we employed innovative system quality management tools and methods, such as value stream mapping, system diagrams, the PDPC method, multi-PDCA loops, and IE measurement tools. These tools were instrumental in identifying and diagnosing production process bottlenecks, optimizing production processes, and enabling real-time monitoring of production processes and product quality. The established intelligent production management system marks a significant stride for enterprises aiming to advance their intelligent manufacturing strategies and achieve industrial upgrades. Compared with traditional production modes, our approach has increased production capacity more than threefold. It yielded commendable outcomes in safety, quality, efficiency, cost, and personnel, chiefly exemplified by the lean production mode, end-to-end transparent quality management, methodical site layout, continual personnel enhancement, and system flexibility. Furthermore, the study's approach to designing and implementing an intelligent production system rooted in the system flow model offers other organizations a comprehensive and scientific blueprint for digital transformation, paving the way for swift and sustainable industry growth. © 2023 IEEE.

关键词： Smart manufacturing

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Landing Performance Analysis and Multi-Parameter Optimization of Oil-Gas Separation Shock Strut of Landing Gear 9

Landing Performance Analysis and Multi-Parameter Optimizatio...

引用

9th International Conference on Fluid Power and mechatronics, FPM 2023

作者： Huili, Dong Xiying, Chen Jinsheng, Liu Beijing Institute of Precision Mechatronics and Controls Beijing China

ISBN: (纸本)9798350304947

Taking the oil-gas separation shock strut of the landing gear as research object, the gas-liquid-solid coupled dynamic modeling and simulation analysis were carried out by comprehensively considering the oil-gas buffer characteristics and the structural flexible bearing characteristics. On this basis, the multi-parameter optimization model was established with the buffer efficiency and landing impact overload as the optimization target. An optimal solution satisfying the performance requirement is obtained. Through iterative optimization, the buffer efficiency grows 4 %, the landing impact overload decreases 8%. Influences of forward inclination angle on structure deformation and mounting joint loads transferring to the airframe are analyzed. The results show that the forward inclination angle has a great influence on the heading load of the shock strut. © 2023 IEEE.

关键词： Struts

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A Design of Embedded Servo Measurement and Control System in High Performance 1

引用

2nd International Conference on Information Control, Electrical Engineering and Rail Transit, ICEERT 2022

作者： Guo, Yunqi Wang, Yuanyin Liang, Yuchen Yu, Zikou Zhang, Yafei Beijing Institute of Precision Mechatronics and Controls Beijing China

ISBN: (数字)9789819964314

ISBN: (纸本)9789819964307

Using embedded technology and virtual instrument technology, an embedded measurement and control system is designed. The system combines control, test and analysis functions in one, in addition to a variety of bus communication capabilities. The hardware part of the system adopts dual FPGA structure of master–slave mode. At the same time, the peripheral devices are equipped with multiple bus communication modules. In order to realize the data interaction with the computer system, the 100 megabit Ethernet communication module is also used. The upper computer software of the system uses Labview development platform, which can realize the automation and intelligent design of the measurement and control software. After testing, the system has the characteristics of universality, portability, simple operation and stable operation, which can meet the measurement, control and analysis of most types of servo systems at present. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Servomechanisms

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Voltage Stabilization Control Method of Variable Speed Onboard Power Supply Based on Dual Outer Loop Control

Voltage Stabilization Control Method of Variable Speed Onboa...

引用

2023 IEEE International Conference on Image Processing and Computer Applications, ICIPCA 2023

作者： He, Chao Fan, Siyuan Wang, Qu Wang, Yafei Beijing Institute of Precision Mechatronics and Controls Beijing China

ISBN: (纸本)9798350314670

To solve the problem of high dynamic fluctuation and low efficiency of the output voltage of the variable speed onboard torque extraction power supply, this paper proposes a voltage regulator control method based on load variation with dual outer loop adaptive switching. Under variable rotational speed conditions, the system stabilizes the terminal voltage by controlling the excitation current of the generator and then uses a rectifier-inverter to achieve frequency and voltage-stabilized AC power. The system uses a dual closed-loop control method consisting of an excitation current inner loop and a voltage outer loop. This paper uses the AC voltage and DC voltage outer loop switching control strategy when the load changes. With load detection and dimension swapping as the switching rule, this paper constructs a model and calculates the onboard power supply, and sets PI parameters to achieve smooth voltage control. The feasibility of the control method has been verified through full-load switching and variable speed experiments. This control method can stabilize the voltage transient fluctuation within 10% at full load switching. © 2023 IEEE.

关键词： Extraction

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Pulsation Test and Analysis of Internal Gear Pump Used in Electro-hydraulic Actuator 8

Pulsation Test and Analysis of Internal Gear Pump Used in El...

引用

2022 8th International Forum on Manufacturing Technology and Engineering Materials, IFEMMT 2022

作者： Tian, Yanquan Zhang, Yuqiang He, Jun Ma, Desen Beijing Institute of Precision Mechatronics and Controls Beijing100076 China

The linear conjugate internal gear pump is widely used in the Electro-hydraulic Actuator (EHA) system because of its high efficiency and low noise, especially in the ship domain where vibration and noise requirements are very strict. To find out the reason, the calculation method of flow fluctuation and pressure pulsation at the pump outlet is obtained theoretically. First, the method of obtaining the two characteristic values of pump source flow pulsation Qs and pump source impedance Zs, and the data calculation and processing program are compiled by Matlab. Then the test platform was built, as well as the computer simulation and data collection. According to the theoretical method, the actual flow fluctuation and pressure pulsation at the pump outlet under different working conditions are measured and calculated respectively. The data of each working condition can be summarized and analyzed as: the test platform is reasonable and the data obtained from the test and calculation are reasonable;under the same frequency spectrum, the amplitude corresponding to the fundamental frequency of the motor pump is much larger than that of the pump tooth;under different working conditions, the variation trend of flow fluctuation and pressure pulsation corresponding to the fundamental frequency and the frequency doubling of the internal gear pump is obtained by testing;the specific values are smaller and suitable for the use in a silent system. © Published under licence by IOP Publishing Ltd.

关键词： MATLAB

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