| 摘要:某型船用低速柴油机活塞冷却油管在运行中发生脱落。为了研究不同装配尺寸对冷却油管装配抗脱松力的影响规律，采用有限元方法研究冷却油管与连接法兰过盈接触面接触压力分布情况，并通过与理论计算值的对比分析验证了有限元结果的合理性。然后通过理论计算得到装配尺寸对冷却油管抗脱松力的影响规律，从而指导活塞冷却油管与法兰面装配过盈量的合理设置。 |
| 关键词: 低速柴油机 活塞冷却油管 过盈装配 抗脱松力 |
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| Anti-loosening Force Analysis of the Assembly of the Piston Cooling Pipe for a Low Speed Diesel Engine |
| Wang Kui,Zhu Linhan,Cui Junfeng,Zou Sai |
| China Shipbuilding Power Engineering Institute Co., Ltd., Shanghai 201206;Hudong Heavy Machinery Co., Ltd., Shanghai 200129 |
| Abstract:The piston cooling pipe of a marine low-speed diesel engine fell off during the operation of a diesel engine. To study the influence rules of different assembly dimensions on the anti-loosening force of cooling pipes, the contact pressure distribution of the interference interface between the cooling pipe and the connecting flange was studied by using the finite element method, and the rationality of the finite element calculation results was verified by comparing with the theoretical calculation results. Then the influence of assembly parameters on the anti-loosening force of cooling pipe was studied by theoretical calculation, which provided reference for the setting of the assembly interference value of the piston cooling pipe and the flange surface. |
| Key words: low speed diesel engine piston cooling pipe interference assembly anti-loosening force |
