CAJ | 학술논문

针对目前对模态测试优化没有一套成熟理论的问题，以某型火箭炮定向器为研究对象进行模态测试。阐述模态测试优化的相关理论，对某火箭炮定向器的有限元模型进行模态分析，提取其模态参数，通过Matlab编程计算，得到最优悬挂点、测点及参考点，并通过锤击试验进行验证。结果表明：优化后的方案在取点上有理论依据，测试更容易避开节线，能避免模态遗漏，得到更好的振型。
침대목전대모태측시우화몰유일투성숙이론적문제，이모형화전포정향기위연구대상진행모태측시。천술모태측시우화적상관이론，대모화전포정향기적유한원모형진행모태분석，제취기모태삼수，통과Matlab편정계산，득도최우현괘점、측점급삼고점，병통과추격시험진행험증。결과표명：우화후적방안재취점상유이론의거，측시경용역피개절선，능피면모태유루，득도경호적진형。
To solve the problem of there is no mature methods in model testing optimization, the paper used the certain type rocket launcher device for model testing. Introduce related theory of model testing optimization, carry out model analyzing of certain type rocket guider, extract its model parameter, and acquire optimal suspension point, test point and reference point by Matlab programming calculation. Then, verify it by hammering test. The results shows that the optimal scheme has theory basis for selecting point, test avoids pitch line more easily, prevents modal omission, and acquires better vibration mode.