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摘要：
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作为电机冷却系统重要组成零件之一的定子内水套，其强度以及耐用性直接影响到冷却装置的寿命，基于电动汽车定子内水套的三维模型，运用Deform-3D软件，对其三维模型进行热压成形过程的仿真分析，从而达到在锻造水套前对热处理后的定子内水套进行一个初步的分析，主要包括：水套金属应力分布、内部缺陷、形成状态以及成形质量。通过分析研究热压水套表面的纤维组织的流线特征，根据仿真分析实现了对水套尺寸的优化设计。该研究实现了对水套尺寸的控制以及其内部金属流线的优化，避免了发动机的转子在其内部高速、高温运行状态下产生表面裂纹的现象，提高了汽车定子内水套的加工质量。
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The stator inner water jacket is one of the important parts of motor cooling system, and its strength and durability directly affect the life of cooling device. Then, based on the three-dimensional model of the stator inner water jacket for electric automobile, the hot pressing process of stator inner water jacket was simulated and analyzed by software Deform-3D, and the preliminary analysis of the heat-treated stator inner water jacket before forging the water jacket was conducted including the stress distribution of water jacket metal, internal defects, forming state and forming quality. By analyzing and studying the streamline characteristics of fiber structure on the surface of
pressing water jacket, the optimized design of water jacket sizes was realized by the simulation analysis. The research achieves the control of water jacket sizes and the optimization of its internal metal streamline, which avoids the surface crack of engine rotor under high-speed and high-temperature operation and improves the processing quality of automobile stator inner water jacket.
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基金项目：
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国家重点研发计划（2016YFD0700900）；张家港市重点研发项目（ZKZ1906）
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作者简介：
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王琪（1962-），男，博士, 教授，硕士生导师，E-mail：wqi003@126.com；通讯作者：朱鲲捷（1994-），男，硕士研究生，E-mail：987434700@qq.com
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