Fault Diagnosis of Gas Engine Bellows

摘要：

　　A bellow of an waste gas exhaust system has cracks after working 80 hours.Modal test and force source analysis were carried out for the system.It was found that cracks of the bellow was caused by resonance.The system dynamics model is established by using finite element software.The exciting force is introduced into the model.The load on bellows exceeds the maximum permissible stress.The bellow will have cracks in this state.The resonance region is avoided by modifying the structure.After structural adjustment,the bellow did not break again.

关键词： Fault diagnosis Vibration test Bellows expansion joint Fatigue fracture

作者: Yu-shan JIN Qing-ren ZHAO Shou-le WANG Xu-wei HU Dan SUN

作者单位: Shanghai Marine Diesel Engine Research Institute,Shanghai,China College of Aerospace and Civil Engineering,Harbin Engineering University,Harbin,China College of Power and Energy Engineering,Harbin Engineering University,Harbin,China Harbin Marine Boiler& Turbine Research Institute,Harbin,China

会议类型: 国际会议

会议名称: 2019 International Conference on Civil Engineering, Mechanics and Materials Science (CEMMS 2019)(2019国际土木工程、力学和材料科学会议)

会议地点: 长沙

会议语种:英文

页码: 223-226

在线出版日期: 2019-08-30（万方平台首次上网日期，不代表论文的发表时间）