双作用电磁离合器多场耦合分析

Multifield Coupling Analysis of Double-Acting Electromagnetic Clutch

随着第三代稀土永磁材料的发展,永磁-电磁式离合器得到广泛地研究和应用。双作用电磁离合器基于永磁-电磁结构,为应对需要扭矩双向传递的场合进一步发展而来的。阐述了双作用电磁离合器的结构和性能特点,提出了解决双作用电磁离合器应用中失效问题的电磁-热-固耦合分析思路。基于ANSYS平台将涡流载荷耦合到温度场分析模块,得到摩擦副-Ⅱ滑磨至完全接合过程中各部件的温度变化及分布。同时将温度场分析结果与其他机械载荷作为已知载荷,在力学分析模块对摩擦片进行热应力耦合仿真分析。分析结果表明:在接合过程中摩擦片和副从动盘接合面最高温度超过181℃,摩擦片最大热变形达到0.1103㎜。

With the discovery of third generation of rare earth permanent magnet materials,the research and application of permanent magnet electromagnetic clutch is getting with rapid development. Double-acting electromagnetic clutch is based on the structure of permanent magnets- electromagnetic,in order to deal with some occasions that mechanical devices require two-way transmission of torque for further evolved. It expounds the structure and performance characteristics of the double double-acting electromagnetic clutch,raising an electromagnetic-thermal-mechanical coupling analysis and research ideal to find the failure mechanism of double-acting electromagnetic clutch when it is used and applied. Relying on Workbench platform and making the eddy current load coupled to analyze module of temperature to obtain the temperature distribution of the clutch friction-Ⅱ. While uses the results of temperature analysis it obtains as a known load coupled with other mechanical loads to do analysis and simulate for the friction plate in mechanical analysis module. The results show that： in the bonding process the maximum temperature of sub-driven disc and friction plate surface engaging surface exceeds 181℃,the maximum thermal deformation of friction plate achieves 0.1103 mm.