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实验室与载飞试验是用装有仪器的“麻雀Ⅲ”导弹完成的,用以鉴定直接机械振动与混响噪音试验在模拟“麻雀”导弹载飞振动环境的技术方面的相对价值,对于实验室实验,机械振动与噪音激励均遵照一般的响应一控制试验规范做,得出的导弹振动数据经标准化后与载飞中测得的振动电平进行比较,以确定在一定方向、空间以及谱分布方面其相似程度。结果表明:噪音试验模拟载飞振动较之机械振动试验更为精确,然而,机械振动激励得到的模拟精度并不是实际使用所不能采纳的。
Laboratory and fly-by-flight tests were performed using instrumented Sparrow III missiles in order to identify the relative value of direct mechanical vibration and reverberation noise tests in simulating the technical aspects of the “Sparrow” missile-borne fly-vibration environment. For the experiment Laboratory tests, mechanical vibrations, and noise stimuli were performed in accordance with the General Response-Controlled Test Specification. The resulting missile vibration data were normalized and compared to the measured vibration levels in the payload to determine the location, space and spectrum Distribution of its similarity. The results show that the noise test simulation is more accurate than the mechanical vibration test, however, the simulation precision obtained by mechanical vibration excitation is not suitable for practical use.