直升机平台振动环境预测与振动环境谱设计方法  

Prediction of Vibration Environment of Helicopter Platforms and Design Method of Vibration Environmental Spectrum

作　　者：陈雪晴 刘瑜[2] 贺琼瑶 吴遥 CHEN Xueqing;LIU Yu;HE Qiongyao;WU Yao(China Aviation Comprehensive Technology Research Institute,Beijing 100028,China;China Ordnance Industrial Standardization Research Institute,Beijing 100080,China;Southwest Institute of Technology Engineering,Chongqing 400039,China)

机构地区：[1]中国航空综合技术研究所,北京100028 [2]中国兵器工业标准化研究所,北京100080 [3]西南技术工程研究所,重庆400039

出　　处：《装备环境工程》2025年第4期67-74,共8页Equipment Environmental Engineering

基　　金：合作基金项目(HDHDW59A010101)。

摘　　要：目的基于直升机平台振动环境实测数据,分析预测直升机振动环境,设计直升机平台振动环境谱。方法基于直升机振动由宽频域随机振动与周期性振动分量叠加而成的特性,识别并分离周期信号,提出基于主成分分析的周期幅值预测方法。在此基础上,分别对周期信号和随机信号进行统计归纳和分析预测,进而合成振动环境谱。结果使用此方法对直升机平台的振动数据进行处理,得到直升机平台的振动环境谱。结论构建了直升机振动谱设计新范式,实现了直升机环境条件设计方法突破。The work aims to analyze and predict the vibration environment of the helicopter,and design the vibration environmental spectrum of the helicopter platform based on the measured vibration environmental data of the helicopter platform.Based on the characteristic that helicopter vibration was composed of the superposition of broadband random vibration and periodic vibration components,the periodic signals were identified and separated,and a periodic amplitude prediction method based on principal component analysis was proposed.On this basis,statistical induction,analysis and prediction were carried out for the periodic signal and the random signal respectively,and then the vibration environmental spectrum was synthesized.This method was used to process the vibration data of the helicopter platform to obtain the vibration environment spectrum of the helicopter platform.It constructs a new paradigm for helicopter vibration spectrum design,achieving a breakthrough in the design method of helicopter environmental conditions.

关 键 词：直升机 周期信号 主成分分析 统计归纳 分析预测 振动环境谱 

分 类 号：V216.51[航空宇航科学与技术—航空宇航推进理论与工程]