航空发动机

徐南岳1，2 ，朱有坤 1，2 ，王彬1，2.燃油电磁阀电磁铁的环境温度影响特性仿真[J].航空发动机,2023,49(2):136-142

燃油电磁阀电磁铁的环境温度影响特性仿真

Simulation of Ambient Temperature Effects on Electromagnet of Fuel Solenoid Valves

DOI：

英文关键词:fuel solenoid valve ambient temperature electromagnetic force current electromagnet opening and closing time aeroengine

基金项目:中央高校基本业务费（NP2018453）、国家自然科学基金（51575257）资助

作者	单位
徐南岳1，2 ，朱有坤 1，2 ，王彬1，2	1.南京航空航天大学能源与动力学院，2.江苏省航空动力系统重点实验室：南京 210016

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中文摘要:

为研究环境温度对燃油电磁阀电磁铁驱动性能的影响，基于电磁阀工作原理和执行机构作动特性等关系，建立了热环境下电磁阀的数学模型，通过温度与磁场特性分析确定了对温度最敏感的关键功能部件为电磁线圈。利用有限元软件Ansoft Maxwell对由线圈和衔铁构成的电-机械转换器进行了数值模拟，得到了不同环境温度下电磁铁磁感应强度分布及系统关键响应指标，研究了阀启闭过程的静态和动态特性。分析了在额定工作状态下环境温度对电磁铁磁场分布和响应特性的影响，获得了不同环境温度下的线圈电流、电磁力、衔铁速度及位移的变化和响应规律。结果表明：环境温度升高引起线圈材料电阻变大，进而导致线圈电流和电磁力减小，最终缩短了电磁阀启闭时间，也易导致在同样驱动电压下电磁阀无法开启。

英文摘要:

In order to study the effects of ambient temperature on the driving performance of the electromagnet in a fuel solenoid valve，based on the relationship between the working principle of the solenoid valve and the actuating characteristics of the actuator，a mathematical model of the solenoid valve in the thermal environment was established. Through the analysis of the temperature and magnet? ic field characteristics，it was determined that the solenoid coil is identified as the most sensitive key functional component to temperature. Numerical simulation of the electro-mechanical converter including the coil and armature was conducted by finite element software Ansoft Maxwell，the distribution of electromagnetic induction intensity and the key response index of the system were obtained under different am? bient temperatures，and the static and dynamic characteristics for the valve opening and closing actions were examined. Influences of ambi? ent temperature on the magnetic field and the electromagnet response under the rated operation condition were analyzed. The coil current， electromagnetic force，the speed and displacement of the armature at different ambient temperatures were obtained by the simulation. The results show that the increase of ambient temperature causes the resistance of the coil material to increase，which leads to the decrease of coil current and electromagnetic force，and finally shortens the opening and closing time and even makes the valve unable to open under the same driving voltage.

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