引信安全系统的直线超声电机设计与试验研究

doi:10.3969/j.issn.1000-1093.2014.01.004

摘要/Abstract

摘要： 针对目前引信安全系统智能化、灵巧化的需求，基于超声电机无电磁干扰、响应快、断电自锁、结构简单、设计灵活等特点，提出利用直线型超声电机作为引信安全系统的驱动装置。根据引信安全系统的要求得到电机初始结构尺寸，利用有限元法分析了各结构参数对电机两相工作模态频率一致性的灵敏度，优化了初始结构尺寸，并制作了原理样机。对电机定子进行了扫频测试和振动模态测试，测试结果表明电机可产生所需两相振型且两相频率接近。在U_pp=80 V，f=86 540 Hz的两相相位差为90°的正弦信号激励下，电机速度为88.2 mm/s，往返运动灵活；电机的最大输出力为2.3 N. 采用直线型超声电机的引信安全系统，为传统引信设计引入了新的思想，具有一定的工程意义和价值。

关键词: 兵器科学与技术, 引信安全系统, 直线超声电机, 模态分析, 灵敏度分析

Abstract: For the intelligent and smart requirements of fuze safety system, a linear ultrasonic motor is proposed based on the eximious characteristics of the ultrasonic motor, such as non-electromagnetic interference, fast response, self-locking, simple structure, and flexible design, etc. The initial structure size of motor is determined according to the structure of fuze safety system. The sensitivity of structural parameters to the two-phase modal frequency consistency is analyzed by finite element software ANSYS, and the motor structure size is optimized. Frequency sweep test and vibration modal test are carried out, indicating that the motor can generate required two-phase oscillation modes, and two-phase frequency are quite close each other. The mechanical performance of motor is tested. The test results show that the speed and maximum output force of motor are 88.2 mm/s and 2.3 N

Key words: ordnance science and technology, fuze safety system, linear ultrasonic motor, modal analysis, sensitivity analysis

中图分类号:

唐玉娟，王新杰，王炅. 引信安全系统的直线超声电机设计与试验研究[J]. 兵工学报, 2014, 35(1): 27-34.

TANG Yu-juan, WANG Xin-jie, WANG Jiong. Design and Experiment of a Linear Ultrasonic Motor for Fuze Safety System[J]. Acta Armamentarii, 2014, 35(1): 27-34.

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