摘要
为了控制船舶液压系统的振动向系统外传递,设计具有减振功能的通舱管件。同时为了验证该通舱管件的隔振效果,对其进行有限元建模,并进行基于显式动力学计算方法的数值仿真试验。数值仿真的结果表明,所设计的通舱管件具有良好的隔振效果,在相同的冲击载荷作用下,相对于原直接焊接在舱壁上的通舱管件,舱壁上同一节点处的振动加速度级由106m/s2下降到了104m/s2,新型通舱管件可有效地减小液压系统振动向系统外传递。
A newly kind of pipe penetration piece with damping was designed in order to reduce disbenefit piping vibration of the hydraulic oil system. FEM modeling and corresponding numerical simulation was carried out in order to validate the ability of vibration isolation, of which the calculation method was based on explicit dynamics theory. It＇s proved that the effect of vibration isolation is obvious when pipe penetration piece with damping is equipped, the order of magnitude of the vibration acceleration at the same node drop from 10 to the power of 6 to 10 to the power of 4, most of the vibration energy was prevented from transferring out.
出处
《舰船科学技术》
北大核心
2013年第12期73-77,共5页
Ship Science and Technology
关键词
液压
通舱管件
隔振
有限元
hydraulic
pipe penetration piece
vibration isolation
FEM
