Optimization Design and Experimental Verification on MSMA Self-sensing Actuator
The magnetically controlled shape memory alloy as the key element is a kind of self-sensing and self-responding actuator,which has high flexibility and intelligence.The structure of the existing self-sensing actuator is optimized.Based on electromagnetic theory analysis and mathematical analysis software,the core and permanent magnet sizes of the self-sensing actuator are optimized to reduce the magnetic resistance and excitation power of the self-sensing actuator and increase the magnetic induction intensity of the air gap.After optimization,the magnetic resistance of the self-sensing actuator decreases,the magnetic induction intensity of the air gap increases,and the magnetic field distribution is uniform.By building a test platform,the performance of the self-sensing actuator is tested and analyzed,the results show that when the applied magnetic field is the same and the number of turns of excitation coil is the same,compared with the self-sensing actuator before optimization,the optimized self-sensing actuator can significantly increase the induced voltage peak-to-peak and reduce the excitation power,which verifies the correctness and rationality of the structural optimization design of the self-sensing actuator.
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维普
