CAJ | 학술논문

作为传递装置，导管在各种机械系统中有着广泛的应用。通过对导管模型进行适当的精细化与简化，得到满足工程计算要求的高效的有限元模型；基于模态分析得到导管的动力特性，并通过实验进行验证；通过大量同类型导管的模态实验，得到导管的模态阻尼比随频率变化关系，为动力响应分析提供重要数据；基于随机振动分析，得到导管的均方根应力，该结果与实验结果吻合良好，验证了整个计算流程的有效性。
작위전체장치，도관재각충궤계계통중유착엄범적응용。통과대도관모형진행괄당적정세화여간화，득도만족공정계산요구적고효적유한원모형；기우모태분석득도도관적동력특성，병통과실험진행험증；통과대량동류형도관적모태실험，득도도관적모태조니비수빈솔변화관계，위동력향응분석제공중요수거；기우수궤진동분석，득도도관적균방근응력，해결과여실험결과문합량호，험증료정개계산류정적유효성。
As a transfer device, catheter has extensively applied in various mechanical systems. In this paper, the catheter modal has been appropriately refined and simplified, and finally the efficient finite element model is obtained in order to satisfy the engineering calculation. Based on the modal analysis, the dynamic character of the catheter is calculated and passes through the experimental verification. The relationship between catheter’s modal damping ratio and frequency is obtained through a lot of modal experiments, which is very important data for dynamic response analysis. Random vibration analysis is performed to get the catheter’s RMS stress. The results are agreed with the experiment data, which verify the effectiveness of the whole calculation process.