冲击环境下燃气轮机转子柔性支撑系统响应传递特性研究  

Research on response transfer characteristics of gas turbine rotor flexible support system under shock environment

作　　者：王腾 冯麟涵 张磊 张春辉 冯宇剑 李茂 WANG Teng;FENG Lin-han;ZHANG Lei;ZHANG Chun-hui;FENG Yu-jian;LI Mao(Naval Research Institute,Beijing 100161,China)

机构地区：[1]海军研究院,北京100161

出　　处：《舰船科学技术》2023年第18期99-104,共6页Ship Science and Technology

基　　金：国家科技重大专项(2017-V-0002-0051-001)。

摘　　要：为了研究冲击环境下燃气轮机转子柔性支撑系统响应传递特性,建立转子轴承柔性支撑系统理论模型并编程对其进行数值求解,将燃气轮机实例模型计算得到的转子支撑系统响应与理论模型编程求解结果进行对比,分析并完善转子支撑系统响应传递特性。结果表明:在冲击环境下燃气轮机机匣由外环到内环结构响应几乎不发生变化;理论模型与燃机实例有限元模型计算得到的转子各响应结果整体变化趋势大致相同;由于柔性支撑刚度较大,经过柔性支撑传递后各转子响应变化很小。本文研究成果可为燃气轮机转子柔性支撑系统的抗冲击设计提供技术支撑。In order to study the response and transfer characteristics of the gas turbine rotor flexible support system in the shock environment,a theoretical model of the rotor bearing flexible support system was established and numerically solved with the programmed program.The response of the rotor support system calculated by the gas turbine model was compared with the results of the theoretical model programming solution,and the response transfer characteristics of the ro-tor support system was analyzed and improved.The results show that the structural response of the gas turbine casing hardly changes from the outer ring to the inner ring under the shock environment.The overall variation trend of each response res-ult of the rotor calculated by the theoretical model and the gas turbine example finite element model is roughly the same.Due to the large stiffness of the flexible support,the response of each rotor changes little after the flexible support is transmitted.The research results can provide technical support for the shock-resistant design of the gas turbine rotor flexible support system.

关 键 词：燃气轮机 柔性支撑 有限元 冲击 传递特性 

分 类 号：U664.131[交通运输工程—船舶及航道工程]