预紧垫层结构振动环境下层间转动试验  

Experimental Research of Pre-tightened Cushion Cylindrical Structure in Vibration Environment

作　　者：温金鹏[1] 万方美[1] 薛江[1] 沈展鹏[1] 李斌[2] 

机构地区：[1]中国工程物理研究院总体工程研究所,绵阳621999 [2]西北工业大学航空学院,西安710072

出　　处：《振动．测试与诊断》2017年第5期1033-1039,共7页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金青年基金资助项目(11602253);中央高校基本科研业务费专项资金资助项目(3102014KYJD015)

摘　　要：振动环境下预紧回转体结构的层间相对转动滑移问题,一直是困扰工程设计领域的难题。为研究预紧回转体结构在振动环境下的层间转动现象,笔者设计了多层回转体预紧垫层结构,并基于Hamilton原理建立了该结构的动力学模型,分析了该类结构发生转动现象的机理。在此基础上,开展了振动环境下试验件层间转动试验,获得了确定的层间转动现象,并通过调整结构参数研究了振动量级、振动频率、预紧载荷和偏心结构等因素对层间转动的影响。试验结果验证了理论的正确性,深化了预紧回转体结构层间相对转动机理的认识可为该类结构的防转设计提供支撑。The relative rotation-slip problem of preloaded revolving body suffering vibration load has perplexed the engineering design fields for years.In order to study interlayer rotary slippage property in vibration environment,the pre-tightened cushion cylindrical structure is designed and constructed.Then the dynamic model of the system is established according to Hamilton principle.And the mechanism of the relative slippage is analyzed.After that,the experiments of the structure under vibration environment are carried out,and the phenomenon of the relative slippage is observed.The influence of various preloads,vibration levels,vibration frequencies and eccentric structure are presented.Experimental results of the system proved the correctness of the theoretical analysis.The research of this paper can reveal the relative motion mechanism of pretightened revolving body,and provide the guidance for the anti-rotary design for similar structure.

关 键 词：预紧 层间转动 振动试验 黏弹性材料 

分 类 号：TH113[机械工程—机械设计及理论] TB123[理学—工程力学]