涡轴发动机动力涡轮模拟轴动力特性研究  

Dynamic Characteristics Research on a Simulated Power Turbine Shaft of Turbo-shaft Engine

作　　者：邓旺群[1] 郭飞跃[2] 高德平[1] 力宁[3] 

机构地区：[1]南京航空航天大学能源与动力学院,江苏南京2100162 [2]中国航空动力机械研究,湖南株洲4120023 [3]上海交通大学机械与动力工程学院,上海200030

出　　处：《燃气涡轮试验与研究》2004年第2期23-28,共6页Gas Turbine Experiment and Research

摘　　要：应用有限元方法完成了某新型涡轴发动机动力涡轮模拟实心轴动力特性-临界转速、振型和不平衡响应的计算;;分析了平衡卡箍对模拟轴动力特性的影响;;最后进行了试验验证。计算和试验结果均表明:平衡卡箍对模拟轴临界转速和不平衡响应的影响甚微;;对振型几乎无影响;;是平衡细长高速柔性转子的理想平衡工装。In the paper, the dynamic characteristics, such as critical speeds, vibration shapes and unbalance responses, of a simulated solid power turbine shaft for a new-type turbine shaft engine have been predicted using finite element method. Furthermore, the influences of balance collars on dynamic characteristics of the simulated shaft have also been analyzed. The predicted and experimental results show that the influence is small. They have nearly no change to vibration shape. So they can be used as ideal balance tools for slender high-speed flexible rotor.

关 键 词：航空发动机 平衡卡箍 涡轮轴发动机 动力涡轮转子 动力特性 模拟轴 

分 类 号：V231.96[航空宇航科学与技术—航空宇航推进理论与工程]