基于分层导磁结构的高性能线性力马达关键技术研究

项目名称： 基于分层导磁结构的高性能线性力马达关键技术研究

项目编号： No.51305305

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 机械、仪表工业

项目作者： 李勇

作者单位： 温州大学

项目金额： 24万元

中文摘要： 线性力马达是引领未来直动式电液伺服阀发展的主流驱动技术。导磁材料产生的铁芯损耗是影响线性力马达热稳定、频响和效率等关键性能的重要因素。为此，项目从分层导磁技术的涡流损耗机理研究出发，提出一种适用于高性能线性力马达的新型分层导磁结构，建立基于该结构的电磁－热－应力多场耦合模型，获得分层导磁结构参数对热稳定、频响和效率等关键性能的影响规律，并以效率最高为目标、频响和热稳定性能要求等为约束条件，实现分层导磁结构的优化设计，为高性能线性力马达的结构机理创新研究提供理论基础和研究方法。项目就分层导磁技术的涡流损耗机理及应用研究、基于分层导磁结构的线性力马达多场耦合模型研究、以效率最高为目标的分层导磁结构优化设计等相关基础问题开展研究，在完成理论分析与实验验证的基础上，实现上述理论与方法应用。通过本项目研究，加强我国在直动式电液伺服阀前沿技术研究中的理论基础。

中文关键词： 线性力马达；分层导磁；涡流损耗；多场耦合；

英文摘要： Linear force motor has become a main drive technology of direct-drive electrohydraulic servo valve in the future. Iron loss induced in the magnetic materials is an important factor to key performance of linear force motor such as thermal stability, frequency response and transfer efficiency. Thus, a pattern structure of layering magnetic conduction for high-performance linear force motor is proposed, derived from research on eddy loss mechanism of layering magnetic conduction. Electromagnetic-thermal-stress multi-field coupling model of that structure is established, and effects of layering magnetic conduction parameters on key performance of thermal stability, frequency response and transfer efficiency are revealed by simulation. Furthermore, optimal design of layering magnetic conduction structure could be realized combining objective of maximum transfer efficiency, with constrained condition of required thermal stability and frequency response. The results can provide theoretical basis and research method for mechanism innovation in structure of high-performance linear force motor. The project will be focused on three related basis problem of linear force motor, which are: eddy loss mechanism and application of layering magnetic conduction, multi-field coupling model for layering magnetic conduction structure

英文关键词： linear force motor；layering magnetic conduction；eddy current loss；multi-field coupling；