基于流-热耦合模型的GMM智能构件温升控制系统设计

摘要

The giant magnetostrictive material performance of giant magnetostrictive actuator is obviously affected by heat, so the accuracy of positioning of GMA is affected also. In the work, a new simplified compulsory water cooling control strategy is proposed for GMM constant temperature. Based on this, the coupled turbulent flow field and temperature field finite element model is created for GMM smart component. The model is simulated by applying COMSOL Multiphysics 3. 4 . The temperature control strategy validity is proved by simulation and experiment..%热效应对超磁致伸缩执行器中超磁致伸缩材料性能产生非常大的影响,从而影响超磁致伸缩执行器的定位精度；提出一种简化的强制水冷策略保证磁致伸缩材料温度恒定；同时建立了超磁致伸缩材料智能构件流—热多场耦合的有限元模型,运用COMSOLMultiphysics 3.4软件对模型进行仿真,仿真结果验证了模型的正确,进一步的实验结果证实了提出的温度控制策略的有效性.