华侨大学学报（自然科学版）
華僑大學學報（自然科學版）
화교대학학보（자연과학판）
Journal of Huaqiao University (Natural Science)
2015年
5期
489-493
,共5页
战仁军%商保利%商鹏%张洪彪%吴虎胜
戰仁軍%商保利%商鵬%張洪彪%吳虎勝
전인군%상보리%상붕%장홍표%오호성
后坐力冲击%车载武器%射击稳定性%四自由度
後坐力遲擊%車載武器%射擊穩定性%四自由度
후좌력충격%차재무기%사격은정성%사자유도
recoil shock%vehicle-mounted weapons%firing stability%four degrees of freedom
为了提高车载武器的射击精度和稳定性，基于振动力学理论，构建武警无人战车车体的四自由度动力学模型，得到系统的固有频率及主振型．对后坐力冲击函数进行简化处理，最终得到系统在后坐力冲击作用下的响应函数．分析结果表明：在后坐力冲击作用下，车体的俯仰角最大值在3°左右，衰减周期为0．5 s，前轮的振幅比后轮的振幅稍大．
為瞭提高車載武器的射擊精度和穩定性，基于振動力學理論，構建武警無人戰車車體的四自由度動力學模型，得到繫統的固有頻率及主振型．對後坐力遲擊函數進行簡化處理，最終得到繫統在後坐力遲擊作用下的響應函數．分析結果錶明：在後坐力遲擊作用下，車體的俯仰角最大值在3°左右，衰減週期為0．5 s，前輪的振幅比後輪的振幅稍大．
위료제고차재무기적사격정도화은정성，기우진동역학이론，구건무경무인전차차체적사자유도동역학모형，득도계통적고유빈솔급주진형．대후좌력충격함수진행간화처리，최종득도계통재후좌력충격작용하적향응함수．분석결과표명：재후좌력충격작용하，차체적부앙각최대치재3°좌우，쇠감주기위0．5 s，전륜적진폭비후륜적진폭초대．
In order to improve the firing accuracy and stability of vehicle-mounted weapons,the paper takes armed police unmanned combat vehicle as the case,builds the four-DOF dynamic model based on the vibration mechanics theory,gains inherent frequency and principal vibration mode of the system.Then the recoil impulse function is simplified and the re-sponse function of the system under the impact of recoil is obtained in the end.Analysis results show:The maximum pitching angle is about 3 degrees under impact of recoil;the decay period is about 0.5 second.The amplitude of the front wheel is slightly larger than the rear one.
