A NOVLE DEPLOYMENT MECHANISM FOR A KA-BAND DEPLOYABLE ANTENNA DRIVEN BY PIEZOELECTRIC ACTUATOR

被引：0
|
作者：
Tang, Lingfeng [1 ]
Zhang, Yizheng [1 ]
Wang, Boquan [1 ]
Yang, Lin [1 ]
Li, Xiaoniu [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Peoples R China
来源：
2022 16TH SYMPOSIUM ON PIEZOELECTRICITY, ACOUSTIC WAVES, AND DEVICE APPLICATIONS, SPAWDA | 2022年
基金：
中国国家自然科学基金;
关键词：
Piezoelectric actuators; CubeSat; Antenna deployable mechanism; Truss structure;
D O I：
10.1109/SPAWDA56268.2022.10046041
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
With the diversification of the CubeSat exploration mission, it is urgent to develop the Ka-band mesh reflector antenna deployable mechanism for the farther the communication distance between the stars and earth. However, current drive devices based on electromagnetic motors, pyrotechnics and elastic deformation energy cannot meet the volume, weight and power consumption requirements of the CubeSat. Therefore, a noble antenna deployable mechanism which use the dual-bend mode coupled type piezoelectric actuator as the drive devices is designed, and the truss structure consisting of 1 moving pair and 12 rotating pairs. Through finite element method, the body and face folding ratio of the antenna deployable mechanism are 206.10 and 205.44 respectively. Experiment proves that the best working frequency of the piezoelectric actuator is between 19.21 kHz and 19.24 kHz and piezoelectric actuator can drive the truss structure unfolding from the folded state in the preset position in 10 seconds.
引用
收藏
页码：105 / 108
页数：4
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