高量级随机振动试验用滑台动态特性分析  

Dynamic Characteristic Analysis of Sliding Table in High-level Random Vibration

作　　者：孙立明[1,2] 路梓照 闫旭东 SUN Li-ming;LU Zi-zhao;YAN Xu-dong(Beijing Institute of Strueture and Environment Engineering,Beijing 100076;Tianjin Aerospace Reliability Technology Co.,Ltd.,Tianjin 300462)

机构地区：[1]北京强度环境研究所,北京100076 [2]天津航天瑞莱科技有限公司,天津300462

出　　处：《环境技术》2021年第2期205-210,共6页Environmental Technology

摘　　要：针对高量级随机振动试验,提出一种新的工装形式,即水平滑台工装。针对新提出的水平滑台工装与小滑板两种不同类型滑台分别进行随机振动试验仿真和输出加速度估算,水平滑台工装通用性强,产品质量15 kg以内控制效果较好,减轻附加质量,可大幅提高振动量级。水平滑台工装的设计及特性对比分析,为今后水平方向高量级随机振动试验提供参考方案和指导。A new type of fixture is put forward for high-level random vibration tests.The simulation of random vibration test and the estimation of output acceleration are carried out for two different types of new horizontal slide fixture and small slide.The horizontal slide fixture has strong universality,the control effect is good within 15 kg of product mass,the additional mass can be reduced,and the vibration magnitude can be greatly improved.The design and characteristic comparison analysis of the horizontal sliding table provide reference scheme and guidance for the future high-level random vibration test.

关 键 词：高量级随机振动试验 水平滑台工装 小滑板 试验仿真 

分 类 号：V416.2[航空宇航科学与技术—航空宇航推进理论与工程] O324[理学—一般力学与力学基础]