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导弹飞行振动环境地面模拟试验方法

         

摘要

ABSTRACT:In this paper, the load characteristics and the test conditions of the environment for the flighting missiles are ana-lyzed, and the shortcomings of the traditional test methods in some cases are pointed out. The vibro-acoustic environment test method and the flexible suspension-multi exciter vibration test method are introduced briefly. Also their virtues and shortcom-ings are analyzed. The vibro-acoustic environment test method can reproduce the broadband vibro-acoustic environment more accurately, and the multi-exciter vibration test method is more suitable to simulate the surface distributed load in flight. The flexible suspension method can simulate the free boundary conditions. All these test methods can complement the conventional test methods. And the rational application of these methods can reproduce the environment of the flighting missiles more accu-rately.%分析了导弹飞行环境的载荷特征和环境条件,指出了目前常用的试验方法在某些情况下存在的不足。简要介绍了振动-噪声复合试验方法及柔性悬挂-多点激励试验方法,并分析了其优、缺点。振动-噪声复合试验方法可更有效地模拟飞行过程中的宽频带振动环境,多点激励试验方法可对飞行过程中的面载荷进行有效模拟,采用柔性悬挂可模拟飞行过程中的自由边界。这些试验方法与传统试验方法相互补充,可更精确地模拟导弹飞行振动环境。

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