高压共轨系统中比例电磁铁的设计与仿真

发布时间：2018-05-12 21:17

本文选题：比例电磁铁 + 磁路　；参考：《合肥工业大学》2016年硕士论文

【摘要】：本文以高压共轨系统中使用的比例电磁铁为研究对象,运用磁路的基本定律、电磁铁的三个基本方程对电磁铁吸力计算公式和动、静态特性数学模型进行推导分析。根据经验设计法初步设计了比例电磁铁的相关结构参数,并在ANSYS Maxwell中建立了有限元模型,对其进行静态磁场分析和瞬态磁场分析,并根据仿真结果,结合多指标正交试验,提出关键结构参数的优化方案。通过经验设计与有限元法相结合的方法,对比例电磁铁进行仿真、设计,可有效改善电磁铁的特性,为其它电磁铁的设计与研究提供了参考。(1)综合运用磁路的基本定律,应用磁路与电路相似的原理,建立了比例电磁铁等效磁路模型。在三个基本方程的基础上推导出比例电磁铁的动态特性数学模型,并给出了比例电磁铁无负载条件下的系统传递函数方框图及传递函数。(2)综合运用电磁学、运动学、电磁铁设计理论,采用经验设计法对比例电磁铁进行初步设计,得到比例电磁铁相关结构参数。(3)利用ANSYS Maxwell有限元软件建立了有限元模型,通过参数化仿真,得到了比例电磁铁关键参数对力一位移曲线的影响,并建立了瞬态仿真模型,通过瞬态场分析得到了铁芯运动相关参数和该比例电磁铁的动态响应时间。(4)设计了比例电磁铁的三因素四水平三指标的正交试验,通过对正交表的方差分析和多指标对比平衡分析,得到了较优的电磁铁参数组合方案为：上隔磁角取35°,铁芯直径取21 mm,隔磁环位置取4.5mm。对优化后的比例电磁铁模型的静态特性进行了分析,得到了较优的力一位移特性曲线。
[Abstract]:In this paper, the proportional electromagnet used in the high voltage common rail system is taken as the research object. The calculation formula and the mathematical model of the dynamic and static characteristics of the electromagnet are deduced and analyzed by using the basic laws of magnetic circuit and three basic equations of the electromagnet. Based on the empirical design method, the relative structural parameters of proportional electromagnet are preliminarily designed, and the finite element model is established in ANSYS Maxwell, and the static magnetic field and transient magnetic field are analyzed. The optimization scheme of key structural parameters is proposed. By combining the empirical design with the finite element method, the simulation and design of the proportional electromagnet can effectively improve the characteristics of the electromagnet and provide a reference for the design and research of other electromagnets. The equivalent magnetic circuit model of proportional electromagnet is established by using the principle of similar magnetic circuit and circuit. On the basis of three basic equations, the mathematical model of dynamic characteristics of proportional electromagnet is derived, and the block diagram of system transfer function and transfer function. In the theory of electromagnet design, the proportional electromagnet is designed preliminarily by experience design method, and the relative structure parameter of proportional electromagnet is obtained. The finite element model is established by using ANSYS Maxwell finite element software, and the parametric simulation is carried out. The influence of the key parameters of proportional electromagnet on the force-displacement curve is obtained, and the transient simulation model is established. Based on the transient field analysis, the parameters related to the core motion and the dynamic response time of the proportional electromagnet are obtained. The orthogonal test of three factors, four levels and three indexes of the proportional electromagnet is designed. Based on the variance analysis of orthogonal table and the comparative balance analysis of multiple indexes, the optimum combination scheme of electromagnet parameters is obtained as follows: the upper magnetic separation angle is 35 掳, the diameter of iron core is 21 mm, and the position of magnetic isolation ring is 4.5 mm. The static characteristics of the optimized proportional electromagnet model are analyzed and the optimum force-displacement characteristic curve is obtained.
【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U464.172

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