CAJ | 학술논문

利用子结构方法对舰艇上复杂隔振系统进行建模分析时，因子结构的复杂性而无法准确获取其动力学模型，一种解决办法是采用试验测得的子结构频响函数数据进行基于频响函数的子结构综合。为提高子结构频响函数测试结果的精度和基于试验数据的频响函数综合结果的精度，采用频响函数综合算法、子结构频响函数测试误差的消除方法、子结构转角自由度频响函数的测试、频响函数数据的测试及影响因素等几个方面进行总结，并采用基于试验数据的频响函数综合法对一复杂隔振系统进行建模分析，得到较好的效果。可在进行实际隔振系统的子结构测试和综合时提供参考。
이용자결구방법대함정상복잡격진계통진행건모분석시，인자결구적복잡성이무법준학획취기동역학모형，일충해결판법시채용시험측득적자결구빈향함수수거진행기우빈향함수적자결구종합。위제고자결구빈향함수측시결과적정도화기우시험수거적빈향함수종합결과적정도，채용빈향함수종합산법、자결구빈향함수측시오차적소제방법、자결구전각자유도빈향함수적측시、빈향함수수거적측시급영향인소등궤개방면진행총결，병채용기우시험수거적빈향함수종합법대일복잡격진계통진행건모분석，득도교호적효과。가재진행실제격진계통적자결구측시화종합시제공삼고。
When using substructure method to analyze the complex isolator system in ships, it is difficult to establish an accurate dynamic model due to the complexity of the substructure. A possible solution is the frequency response function (FRF)-based substructure synthesizing method by employing experimental FRF’s data. In order to improve the accuracy of the tested FRF data and the synthesized FRF results, the literature reviews on FRF-based substructure synthesizing method by using measured component FRFs were summarized. The topic covers the developed FRF-based algorithms, the numerical techniques to eliminate the measurement errors, the influence and the test of rotational degrees of freedom, common measurement noise and measurement related issues. Finally, the FRF-based substructure method by using experimental FFRs was applied to a real isolation system and good results were obtained. This study has provided a reference for practical application of the FRF-based substructure method.