摘要
针对动中通天线易随装甲车行进产生强烈振动以及动中通天线没有减震系统或减震系统效果差容易导致设备损坏等问题,设计一种中通天线减震系统,通过理论计算、Pro/E建模和有限元分析软件Ansys对减震系统进行仿真模拟,输出减震器的自由变形量、固有频率和在随机振动条件下的振幅、应力云图,最后通过振动试验,得到减震器的隔振效率。研究结果表明,通过改变钢丝绳的直径,改变减震系统的固有频率,可以有效地避开共振区域,提高减震效果。证明了使用Ansys对振动特性进行仿真在实际运用中是可行的。
Aiming at the problems of strong vibrations caused by the armored vehicle-mounted SOTM antenna due to its no damper system or poor damping system effect,which will damage the equipment,a SOTM antenna damping system is designed in this paper.Then,the shock absorption system is simulated through the theoretical calculation,Pro-E modeling and finite element analysis software ANSYS to output the free deformation and natural frequency of the shock absorber,as well as the amplitude and stress nephogram under random vibration conditions.Finally,the vibration isolation efficiency of the damper is obtained through vibration tests.The results show that by changing the diameter of the wire rope and the natural frequency of the damper system,the resonance region can be effectively avoided,and the shock absorption effect can be improved.It proves the feasibility of ANSYS to simulate the vibration characteristics in practical application.
作者
李玉龙
LI Yu-long(Xi′an Clarke Communication Technology Co.,Ltd,Xi′an Shaanxi 710100,China)
出处
《机械研究与应用》
2022年第4期32-34,共3页
Mechanical Research & Application
关键词
天线减震
减震系统
固有频率
隔振效率
antenna damping
shock absorber system
natural frequency
vibration isolation efficiency
