柴油机硅油减振器优化设计和仿真计算研究  

Research on Optimal Design and Calculation of Silicone Oil Damper For Diesel Engines

作　　者：张长岭 潘月德 曹晟 梁清延[1] 官维[2] 覃建文 文涛 Zhang Chang-ling;Pan Yue-de;Cao Sheng;Liang Qing-yan;Guan Wei;Qin Jian-wen;Wen Tao(Guangxi Yuchai Machinery Co.,Ltd.,Guangxi Yulin 537000;School of Mechanical Engineering,Guangxi University,Guangxi Nanning 530004)

机构地区：[1]广西玉柴机器股份有限公司,广西玉林537000 [2]广西大学机械工程学院,广西南宁530004

出　　处：《内燃机与配件》2024年第21期5-8,共4页Internal Combustion Engine & Parts

基　　金：广西科技重大专项(桂科AA22068107)。

摘　　要：针对某型柴油机曲轴螺栓因扭振振幅过大而频繁破坏的问题,在发动机曲轴当量系统模型上进行了振动特性分析,并对硅油减振器进行了优化设计。所提出的优化方案对减振器改动较小,有效提高减振器台架测试的通过率,显著缩短产品开发周期。还对优化方案进行曲轴扭振可靠性试验,试验结果表明:在原机的基础上选用小减振器,并将原机减振器惯性块宽度减少7 mm,既可以改善4谐次振幅,又能够保证8谐次振幅不超过0.15 deg。Aiming at the problem of frequent destruction of crankshaft bolts of a certain type of diesel engine due to excessive amplitude of torsional vibration.We performed vibration characterization on the engine crankshaft equivalent system model and optimized the design of the silicone oil damper.The proposed optimization scheme has less modification to the damper,effectively improves the pass rate of the damper bench test,and significantly shortens the product development cycle.We also conducted crankshaft torsional vibration reliability tests on the optimized scheme,and the test results show that:on the basis of the original machine,the selection of a small damper,and reduce the width of the inertia block of the original damper by 7mm,which can improve the 4th harmonic amplitude,and ensure that the 8th harmonic amplitude does not exceed 0.15 deg.

关 键 词：柴油机 曲轴扭转振动 硅油减振器 优化设计 

分 类 号：TK422[动力工程及工程热物理—动力机械及工程]