基于虚拟统计能量法的运载火箭声振环境预示  

Prediction of Acoustic and Vibration Environment for Launch Vehicles Based on Virtual Statistical Energy Analysis

作　　者：王英诚 杨浩亮 杨毅强 周泽 WANG Ying-cheng;YANG Hao-liang;YANG Yi-Qiang;ZHOU Ze(Beijing Zhongke Aerospace Technology Co.LtdC,Beijing 100176,China;Institute of Mechanics,Chinese Academy of Sciences,Beijing 100089,China;Hexagon Manufacturing Intelligence Division,Design and Engineering Business Unit,Beijing 100089,China)

机构地区：[1]北京中科宇航技术有限公司,北京100176 [2]中国科学院力学研究所,北京100089 [3]海克斯康制造智能设计与工程业务单元,北京100089

出　　处：《计算机仿真》2024年第7期50-54,294,共6页Computer Simulation

摘　　要：运载火箭在飞行过程中要面临复杂且恶劣的力学环境,其中跨声速段引起的声致振动最为严酷,因此准确预示跨声速火箭声振环境是火箭研制成功的重要基础之一。噪声试验是准确预示运载火箭声振环境有效的方法,但不利于研制早期阶段暴露潜在的力学风险。为此,研究将基于虚拟统计能量法应用于运载火箭声振环境预示,通过对比某运载火箭舱段噪声试验试验结果和虚拟统计能量法的仿真预示结果,证明了虚拟统计能量法可实现全频域的运载火箭声振环境预示。DCarrier rockets face complex and harsh mechanical environments during flight,with the most severe acoustic vibrations caused by the transonic segment.Therefore,accurately predicting the acoustic and vibration environment of transonic rockets is one of the important foundations for successful rocket development.Noise test is an effective method to accurately predict the sound and vibration environment of carrier rocket,but it is not conducive to expose the potential mechanical risks in the early stage of development.For this reason,the study applied the virtual statistical energy method to the sound and vibration environment prediction of carrier rocket.By comparing the experimental results of a carrier rocket cabin noise test with the simulation prediction results of the virtual statistical energy method,it was proved that the virtual statistical energy method could realize the acoustic environment prediction of carrier rocket in the full frequency domain.

关 键 词：统计能量分析 运载火箭 噪声试验 环境预示 

分 类 号：V448.153[航空宇航科学与技术—飞行器设计]