微振动测试平台及其标定方法
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摘要
由于航天器在轨运行时产生的微振动会对其成像质量和指向精度等关键工作性能产生较大影响,通过地面试验测试航天器各活动部件的微振动特性对航天器的减振/隔振设计至关重要,为此研制了两种微振动测试平台:应变式微振动测试平台(strain micro-vibrations testing platform,简称SMTP)和压电式微振动测试平台(piezoelectric micro-vibrations testing platform,简称PMTP)。为了获得高精度的测试结果,分别针对SMTP和PMTP开发了高精度的标定方法,并通过试验测试对两种测试平台的工作性能进行检验。结果表明,SMTP和PMTP的测试误差分别在±1.10%和±4.94%以内,且二者对同一微振动的振动幅值的测试误差在±4.36%以内。
The micro-vibration generated by the motion equipment on spacecraft significantly influences the imaging quality and pointing accuracy of spacecraft.The key to designing the damping and isolation for the spacraft is the use of precise tests of the micro-vibrations on Earth.We invented two kinds of testing platforms,strain micro-vibrations testing platform(SMTP)and piezoelectric micro-vibrations testing platform(PMTP),to test the micro-vibrations,and proposed accurate calibration methods to achieve high precision for both platforms.Experimental results showed that the testing errors of SMTP and PMTP were within±1.10% and ±4.94% respectively,and the testing error of SMTP and PMTP of the same micro-vibrations was within ±4.36%.
The micro-vibration generated by the motion equipment on spacecraft significantly influences the imaging quality and pointing accuracy of spacecraft.The key to designing the damping and isolation for the spacraft is the use of precise tests of the micro-vibrations on Earth.We invented two kinds of testing platforms,strain micro-vibrations testing platform(SMTP)and piezoelectric micro-vibrations testing platform(PMTP),to test the micro-vibrations,and proposed accurate calibration methods to achieve high precision for both platforms.Experimental results showed that the testing errors of SMTP and PMTP were within±1.10% and ±4.94% respectively,and the testing error of SMTP and PMTP of the same micro-vibrations was within ±4.36%.
引文
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[5]Chen Jiangpan,Cheng Wei,Wang Yunfeng.Modeling and simulation of solar array drive assembly disturbance driving a flexible load[J].Applied Mechanics and Materials,2014,565:67-73.
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[13]何芝仙,常小强,李震.双孔平行梁式传感器设计的理论分析与实验研究[J].试验技术与试验机,2006,46(1):14-17.He Zhixian,Chang Xiaoqiang,Li Zhen.Theoretical analysis and experimental research on the beam sensor with two parallel holes[J].Test Technology and the Testing Machine,2006,46(1):14-17.(in Chinese)
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[15]陈江攀,程伟,夏明一.一种应变式超低频微振动测试台[J].振动与冲击,2014,33(24):77-81.Chen Jiangpan,Cheng Wei,Xia Mingyi.An ultra-low frequency micro-vibration testing platform based on strain-resistance effect[J].Journal of Vibration and Shock,2014,33(24):77-81.(in Chinese)
[16]宋爱国,刘文波,王爱民.测试信号分析与处理[M].北京:机械工业出版社,2007:21-30.
[2]张鹏飞,程伟,赵煜.考虑耦合效应的动量轮扰动测量[J].北京航空航天大学学报,2011,37(8):948-952.Zhang Pengfei,Cheng Wei,Zhao Yu.Measure of reaction wheels disturbance considering coupling effect[J].Journal of Beijing University of Aeronautics and Astronautics,2011,37(8):948-952.(in Chinese)
[3]徐赵东,翁沉卉,朱俊涛.航天器中反作用轮干扰力仿真研究[J].振动、测试与诊断,2013,33(5):881-885.Xu Zhaodong,Weng Chenhui,Zhu Juntao.Method for reaction wheel assembly simulation on spacecraft[J].Journal of Vibration,Measurement&Diagnosis,2013,33(5):881-885.(in Chinese)
[4]Chen Jiangpan,Cheng Wei,Han Wei.Analysis and simulation of stepper motor disturbance considering structural coupling[J].Applied Mechanics and Materials,2014,526:103-108.
[5]Chen Jiangpan,Cheng Wei,Wang Yunfeng.Modeling and simulation of solar array drive assembly disturbance driving a flexible load[J].Applied Mechanics and Materials,2014,565:67-73.
[6]程啟华,李永新.压电传感器低频动态补偿数字滤波器设计[J].电子测量技术,2007,30(8):143-146.Cheng Qihua,Li Yongxin.Design for low-frequency compensation of piezoelectric sensor based on digital filter[J].Electronic Measurement Technology,2007,30(8):143-146.(in Chinese)
[7]Masterson R A.Development and validation of empirical and analytical reaction wheel disturbance models[D].Boston:Massachusetts Institute of Technology,1999.
[8]Masterson R A,Miller D W,Grogan R L.Development and validation of reaction wheel disturbance models:empirical model[J].Journal of Sound and Vibration,2002,249(3):575-598.
[9]Kamesh D,Pandiyan R,Ghosal A.Passive vibration isolation of reaction wheel disturbances using a low frequency flexible space platform[J].Journal of Sound and Vibration,2012,331(6):1310-1330.
[10]Zhou Weiyong,Li Dongxu,Luo Qing,et al.Analysis and testing of microvibrations produced by momentum wheel assemblies[J].Chinese Journal of Aeronautics,2012,25(4):640-649.
[11]Luo Qing,Li Dongxu,Zhou Weiyong,et al.Dynamic modelling and observation of micro-vibrations generated by a single gimbal control moment gyro[J].Journal of Sound and Vibration,2013,332(19):4496-4516.
[12]Zhou Weiyong,Li Dongxu.Experimental research on a vibration isolation platform for momentum wheel assembly[J].Journal of Sound and Vibration,2013,332(5):1157-1171.
[13]何芝仙,常小强,李震.双孔平行梁式传感器设计的理论分析与实验研究[J].试验技术与试验机,2006,46(1):14-17.He Zhixian,Chang Xiaoqiang,Li Zhen.Theoretical analysis and experimental research on the beam sensor with two parallel holes[J].Test Technology and the Testing Machine,2006,46(1):14-17.(in Chinese)
[14]谢永华,孟凡虎.双孔平行梁式称重传感器非线性校正研究[J].现代科学仪器,2010(6):64-66.Xie Yonghua,Meng Fanhu.Nonlinear correction study of double parallel beam weighing transducer[J].Modern Scientific Instruments,2010(6):64-66.(in Chinese)
[15]陈江攀,程伟,夏明一.一种应变式超低频微振动测试台[J].振动与冲击,2014,33(24):77-81.Chen Jiangpan,Cheng Wei,Xia Mingyi.An ultra-low frequency micro-vibration testing platform based on strain-resistance effect[J].Journal of Vibration and Shock,2014,33(24):77-81.(in Chinese)
[16]宋爱国,刘文波,王爱民.测试信号分析与处理[M].北京:机械工业出版社,2007:21-30.