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INVESTIGATION ON THE dynamic response performance OF A NOVEL THREE-WAY SOLENOID VALVE

Journal of Pharmaceutical Analysis 2006年第1期18卷 13-16,20页

作者：李维苏岭汪映周龙保柳泉冰 School of Energy and Power Engineering Xi'an Jiaotong UniversityXi'an 710049China Chang An Group Chongqin 400064China

Objective A novel high-speed three-way solenoid valve is developed, which is used for the common-rail injection system equipped on DME powered engine. In order to improve the dynamic response performance of the three-way solenoid. Methods Experimental studies have been conducted to investigate the effects of spool stroke, drive voltage, negative demagnetizing pulse and two drive schemes on the dynamic response performance of the three-way solenoid valve. Results The results show that the dynamic response performance of the three-way solenoid valve can be remarkably improved by shortening the spool stroke and increasing the drive voltage. Simultaneously, the difference between the response time of closing valve and that of opening valve decreases. At each different drive voltage, there exists an optimal negative demagnetizing pulse corresponding to the same positive exciting pulse. At this optimal pulse, the dynamic response performance of the three-way solenoid valve is the best. In addition, the high drive voltage can lead to the smaller optimal negative demagnetizing pulse. It is also indicated from the experiments that the dynamic response performance of the three-way solenoid valve is better when the NO.1 drive scheme is adopted. The lower drive voltage results in the larger difference between the dynamic response performances for the two drive schemes. Conclusion The dynamic response performance of a novel three-way solenoid valve is good.

关键词： three-way solenoid valve dynamic response performance common-rail

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Optimal Design of the Modular Joint Drive Train for Enhancing Cobot Load Capacity and dynamic performance

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Chinese Journal of Mechanical Engineering 2024年第3期37卷 26-40页

作者： Peng Li Zhenguo Nie Zihao Li Xinjun Liu Department of Mechanical Engineering Tsinghua UniversityBeijing 100084China State Key Laboratory of Tribology in Advanced Equipment Tsinghua UniversityBeijing 100084China Beijing Key Lab of Precision/Ultra-precision Manufacturing Equipments and Control Tsinghua UniversityBeijing 100084China

Automation advancements prompts the extensive integration of collaborative robot(cobot)across a range of *** to the commonly used design approach of increasing the payload-to-weight ratio of cobot to enhance load capacity,equal attention should be paid to the dynamic response characteristics of cobot during the design process to make the cobot more *** this paper,a new method for designing the drive train parameters of cobot is ***,based on the analysis of factors influencing the load capacity and dynamic response characteristics,design criteria for both aspects are established for cobot with all optimization design criteria normalized within the design ***,with the cobot in the horizontal pose,the motor design scheme is discretized and it takes the joint motor diameter and gearbox speed ratio as optimization design ***,all the discrete values of the optimization objectives are obtained through the enumeration method and the Pareto front is used to select the optimal solution through multi-objective *** on the cobot design method proposed in this paper,a six-axis cobot is designed and compared with the commercial *** result shows that the load capacity of the designed cobot in this paper reaches 8.4 kg,surpassing the 5 kg load capacity commercial cobot which is used as a *** minimum resonance frequency of the joints is 42.70 Hz.

关键词： Multi-objective optimization Modular joint drive train design Load capacity dynamic response performance

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Simulation research on dynamic performance of the new type high-pressure solenoid valve

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Mechanical Engineering Science 2020年第2期2卷 43-48,I0005页

作者： Qihui YU Qiancheng WANG Kaifei ZHANG Weiwei ZHENG School of Mechanical Engineering Inner Mongolia University of Science and TechnologybaotouChina The State Key Laboratory of Fluid Power and Mechatronic Systems HangzhouChina College of Mechanical and Electrical Engineering Henan Agricultural University450002ZhengzhouChina College of Mechanical and Electrical Engineering Henan radio and television UniversityZhengzhouChina

To improve energy density,the transportation,storage,and operations of hydrogen,methane,and compressed air vehicles currently require high-pressure ***-pressure solenoid valve becomes the vital element to above *** order to reduce leakage and aerodynamic force influence,a new type high-pressure solenoid valve was *** simulation model which included electromagnetic model,aerodynamic force model was established by means of the nonlinear mathematic *** the software MATLAB/Simulink for simulation,the dynamic response characteristics of high-pressure pneumatic solenoid valve were obtained under different pulse width modulation(PWM)input control *** show that,first of all,the new type of high-pressure solenoid valve can meet the switch ***,the opening movement and closing movement of the spool lags the PWM rising signal,and the coil current fluctuates significantly during the movement of the ***,on/off status of high-pressure valve cannot be represented by the duty *** research can be referred in the design of the high-pressure solenoid valve..

关键词： high-pressure solenoid valve dynamic response performance pulse width modulation the duty cycle

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