大型设备支撑结构抗冲击缩比试验方法研究  

Research on Anti-Impact Scaling Test Method for Supporting Structure of Large Equipment

作　　者：李朋洲[1] 李一磊 孙磊[1] 乔红威[1] 陈学德[1] 张鲲[1] 李锡华[1] Li Pengzhou;Li Yilei;Sun Lei;Qiao Hongwei;Chen Xuede;Zhang Kun;Li Xihua(Reactor Engineering Research Sub_Institue,Nuclear Power Institute of China,Chengdu,610213,China)

机构地区：[1]中国核动力研究设计院反应堆工程所,成都610213

出　　处：《核动力工程》2022年第4期99-105,共7页Nuclear Power Engineering

摘　　要：为给某核动力大型设备支撑结构的抗冲击设计提供试验依据,确保其抗冲击能力满足相关规范要求,需选用该大型设备及其支撑结构缩比模型作为抗冲击技术研究对象,在标准中型冲击机上进行冲击试验。依据π定理对该大型设备支撑结构缩比模型抗冲击试验进行理论分析,获得3种可以选用的试验工况;通过改变缩比模型加速度值使得缩比模型的支撑结构根部最大应力强度与原型达到一致,解决了π定理推导中的试验条件难题。本研究建立的分析方法可为大型设备的支撑结构冲击机缩比试验提供参考。In order to provide experimental basis for anti-impact design of the supporting structure of large nuclear power equipment and ensure that its impact resistance meets the requirements of relevant specifications,it is necessary to select the scaling model of the large equipment and its supporting structure as the research object of impact resistance technology and carry out impact test on standard medium-sized impact machine.According to theπtheorem,the impact resistance test of the scaling model of the supporting structure of the large equipment is theoretically analyzed,and three optional test conditions are obtained;By changing the acceleration value of the scaling model,the maximum stress strength at the root of the supporting structure of the model is consistent with that of the prototype,and the difficult problem of test conditions in the derivation ofπtheorem is solved.The analysis method established in this study can provide a reference for the scaling test of the impact machine of the supporting structure of large equipment.

关 键 词：大型结构 缩比试验 冲击 

分 类 号：O303[理学—力学]