在过去近30年里,挡座型三点支撑或三点吊挂转炉在倾动过程中超过一定角度常常会产生摩擦异响和振动,并引起挡座接触面磨损。这种现象长期困扰着国内外大量同类转炉设计和使用,增加了转炉在使用过程中的维护成本。本文通过有限元分析揭示三支点转炉的过约束力学构造和弹性摩擦振动机理,并提出解决方案。目前研究的结果已经在工程中应用,其解决方案均在实际工程中进行了验证及考核。 In the past 30 years, the three-point support or three-point pendant converter tilting more than a certain angle during the process often have frictional noise and vibration, and cause the contact surface of the seat wear. This phenomenon has long plagued a large number of domestic and foreign similar converter design and use, increasing the converter in the use of the maintenance costs. In this paper, the finite element analysis of the three-point converter to reveal the over-constrained mechanical structure and elastic friction and vibration mechanism, and propose solutions. The current research results have been applied in engineering, the solutions are verified in the actual project and assessment.