摘要
对于采用隔振装置的船舶设备,在遭受外界大冲击时,系统相对位移响应幅值较大,可能会超过设备外接管系的变形范围,甚至超过设备本身的变形能力;因此,在设备保证加速度响应幅值处于设备承受范围的要求下,需在隔振装置中安装合适的限位器用于抑制系统的相对位移幅值;以单自由度单层隔冲系统为研究对象,基于杜哈梅积分,采用分段建模,分析了系统有、无限位器的冲击响应和限位器的主要参数变化对系统抗冲击性能的影响,所得结论可用于指导限位器的设计。
When marine equipments adopted isolation mounting device is impacted by large shock load,the relative displacement amplitudes of the isolating system may be larger than the allowable deflection of the pipes or even the equipments. Therefore, under the premise of ensuring the amplitude of the acceleration response in a bear range,appropriate displacement restrictors are needed in isolation mounting to restrict the amplitudes. Taking single-stage isolating systems as the research object,and based on Duhamel integral,the subsection model was established. The different response characteristics with or without restrictors were analyzed. The changes of the shock resistance performance were also analyzed in the case of different main restrictor parameters. The conclusions can be used to guide the design of the restrictor.
出处
《兵器装备工程学报》
CAS
2016年第8期29-32,共4页
Journal of Ordnance Equipment Engineering
基金
国防十二五预研基金(4010304030202)
关键词
限位器
刚度
间隙
抗冲击性能
restrictor
stiffness
gap
shock resistance performance
