帶單穩(wěn)態(tài)永磁機(jī)構(gòu)的自保持型電磁閥電磁系統(tǒng)特性分析
本文選題:自保持型電磁閥 + 單穩(wěn)態(tài)永磁機(jī)構(gòu)。 參考:《河北工業(yè)大學(xué)》2012年碩士論文
【摘要】:電磁閥是一種利用電磁力完成打開和關(guān)閉動(dòng)作的自動(dòng)閥門。帶單穩(wěn)態(tài)永磁機(jī)構(gòu)的自保持型電磁閥具有動(dòng)作靈敏、性能可靠、體積小等優(yōu)點(diǎn),通常用作氣體或者液體流量控制閥,被廣泛應(yīng)用在很多自動(dòng)控制系統(tǒng)中。電磁系統(tǒng)作為自保持型電磁閥的重要組成部分,其性能的好壞直接影響著整個(gè)電磁閥工作質(zhì)量的高低,因此對其進(jìn)行性能分析及結(jié)構(gòu)優(yōu)化具有重要的理論意義和實(shí)用價(jià)值。 本課題對某型號自保持型電磁閥進(jìn)行研究,主要工作有以下幾個(gè)方面: 首先,運(yùn)用ANSYS軟件中的參數(shù)化設(shè)計(jì)語言APDL,對帶單穩(wěn)態(tài)永磁機(jī)構(gòu)的自保持型電磁閥的電磁系統(tǒng)進(jìn)行了三維有限元建模和仿真分析。計(jì)算了額定電壓下的靜態(tài)電磁吸力和線圈電感,分析了其靜態(tài)特性,并研究了電磁吸力和反力的配合情況。 其次,搭建電路,對電磁閥的吸合過程進(jìn)行了實(shí)驗(yàn),用示波器得到了其吸合時(shí)線圈中的電流與時(shí)間的關(guān)系,并將實(shí)驗(yàn)結(jié)果與仿真結(jié)果進(jìn)行比較,驗(yàn)證模型的正確性。 最后,以永磁體高度、線圈匝數(shù)、靜鐵心高度和內(nèi)套高度為設(shè)計(jì)變量對自保持型電磁閥進(jìn)行了優(yōu)化設(shè)計(jì),,從而找到了電磁閥電磁機(jī)構(gòu)的最優(yōu)參數(shù),增大了初始位置的吸力,提高了系統(tǒng)的可靠性。
[Abstract]:Solenoid valve is an automatic valve that uses electromagnetic force to open and close the valve. Self-holding solenoid valve with Monostable permanent magnet mechanism is widely used in many automatic control systems because of its advantages of sensitive operation, reliable performance, small volume and so on, which is usually used as gas or liquid flow control valve. Electromagnetic system as an important part of self-retaining solenoid valve, its performance directly affects the working quality of the whole solenoid valve, so it has important theoretical significance and practical value to analyze its performance and optimize its structure. In this paper, a certain type of self-retaining solenoid valve is studied, the main work is as follows: Firstly, the electromagnetic system of self-holding solenoid valve with Monostable permanent magnet mechanism is modeled and simulated by using the parameterized design language APDL in ANSYS software. The static electromagnetic suction and coil inductance under rated voltage are calculated and its static characteristics are analyzed. The coordination of electromagnetic suction and reaction force is studied. Secondly, the circuit is set up, the suction process of the solenoid valve is tested, the relationship between the current and time in the coil is obtained by oscilloscope, and the experimental results are compared with the simulation results to verify the correctness of the model. Finally, the optimum design of self-holding solenoid valve is carried out by taking the height of permanent magnet, the number of turns of coils, the height of static core and the height of inner sleeve as design variables, thus the optimum parameters of electromagnetic mechanism of solenoid valve are found, and the suction of initial position is increased. The reliability of the system is improved.
【學(xué)位授予單位】:河北工業(yè)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2012
【分類號】:TH134
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