Design and Experiment of a Linear Ultrasonic Motor for Fuze Safety System

doi:10.3969/j.issn.1000-1093.2014.01.004

Abstract

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

CLC Number:

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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