摘要
针对传递特性与激励模式相关性较强的问题,研究了不同激励模式对导弹振动响应传递特性的影响,并给出了基于传递特性进行振动响应预示的最佳方法;分析了振动响应传递特性理论;建立了完备的导弹模型;根据导弹自主飞行的噪声激励特点,设置了六种激励工况,进行了导弹各关键位置的振动响应传递特性研究;研究发现:对于激励形式比较一致的工况,响应传递特性基本一致,其差异性与距离跨度有关;在使用传递特性和已知响应预示其他位置的响应时,应使用靠近已知响应位置的传递特性,即使用跨度小的传递。
To reval out pertinency of the vibration transmission and the exciting mode, the influence of the aero-acoustic exciting mode on the missile＇ s vibration transmission is investigated, where the optimal vibration prediction method based the vibration transmission is put forward. The theory of the vibration transmission is analyzed, where the pertinency of the vibration transmission and the exciting mode is derived. The model of the missile is established. The exciting cases are chosen according to the characters of the aero-acoustic exciting mode. The vibration transmission of the missile is calculated and analyzed. It is found that the vibration transmission is accordant in the adjacent exciting modes, where the otherness of the transmission has relationship of the span. And the vibration transmission of the small span should be used in vibration prediction.
作者
王亮
张妍
蔡毅鹏
周剑波
南宫自军
WANG Liang;ZHANG Yan;CAI Yipeng;ZHOU Jianbo;NANGONG Zijun(China Academy of Launch Vehicle Technology,Beijing 100076,China)
出处
《兵器装备工程学报》
CAS
北大核心
2018年第5期26-30,共5页
Journal of Ordnance Equipment Engineering
基金
国家重点实验室2015年开放课题(MCMS-0115G01)
国防技术基础科研项目(JSZL2015203B002)
国防基础科研项目(JCKY2016203B032)
关键词
振动
传递特性
激励
响应
vibration
vibration transmission
exciting
response
