作　　者： (韩璐）; (孟宪松）; (闫明）; (朱鹤）;

机构地区： 沈阳工业大学机械工程学院,辽宁沈阳110870

出　　处： 《造船技术》 2017年第4期5-8,27,共5页

摘　　要： 在舰艇设备中,通常采用隔振系统来吸收冲击所带来的能量,为了使设备在受到冲击载荷时不发生过大变形,隔振系统常带有限位器。以单自由度单层隔振系统为研究对象,借助于ANSYS软件建立该系统的有限元模型,参考德国联邦国防军舰船建造规范BV 0430/1985标准确定隔振系统的等效冲击载荷谱,并将等效的双半正弦波加速度冲击载荷加载到有限元模型中,应用有限元分析方法分别对有、无限位器的隔振系统在冲击载荷作用下的时域响应特性进行数值仿真计算,计算得出隔振系统在冲击载荷作用下的相对位移和绝对加速度时域响应曲线,进一步分析得出使用限位器可以提高舰艇设备抗冲击性能的结论,可用于提高舰艇设备的可靠性设计。 In warship equipment, vibration isolation system can absorb most of the shock energy. The limrters are usually necessary in order to restrict the largest deformation of the e- quipment in the shock response. The finite element model of the single degree of freedom vi- bration isolation system is established by ANSYS software. Its equivalent shock load spec- trum is confirmed in virtue of German Federation Wehrmaeht vessel construction standard BV 0430/1985. This load spectrum is converted into equivalent double half-sine wave accelera- tion shock load and input into the finite element model. The time-domain response characteris- tics of the vibration isolation system with and without limiters are numerically simulated under the shock load respectively. The corresponding relative displacement and absolute acceleration response curves of the vibration isolation system are obtained. Further analysis shows that the use of limiter can improve the conclusion of warship equipment shock resistance and can be used to improve the reliability of ship equipment design.

关 键 词： 限位器 抗冲击性能 冲击响应 隔振系统