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本文以电—2引信为例分析了在碰击胶合板时引信受到的另一种激励形式,即外界激励力直接作用到引信的头螺上时引信的输出响应。根据试验结果分析,认为在这种激励条件下,系统的固有频率(基频)较之压电系统的固有频率(基频)要小得多。从系统特性方面讲,对于目前的电—2引信,外界激励力作用到引信的头螺上对保证引信的低灵敏度性能是不利的。
In this paper, the electric fuze-2 is taken as an example to analyze another kind of excitation fuze which the fuze receives when hitting the plywood, that is, the output response of the fuze when the external excitation force directly acts on the snail of the fuze. According to the analysis of the test results, it is considered that the inherent frequency (fundamental frequency) of the system under such excitation conditions is much smaller than the natural frequency (fundamental frequency) of the piezoelectric system. In terms of system characteristics, for the current electric-2 fuze, the external excitation force acting on the snail’s snail is unfavorable to ensure the low sensitivity of the fuze.