CAJ | 학술논문

文章针对内置式框架肋骨加强的长舱段，推导了框架肋骨临界刚度的理论计算公式，给出了舱段框架肋骨临界刚度的计算方法；通过 ANSYS 有限元软件，比较分析了舱段失稳临界压力理论公式计算结果与有限元计算结果之间的误差，指出现行舱段失稳临界压力理论计算公式存在一定的适用范围；以舱段失稳压力有限元结果为修正基准值，引入修正系数 k 修正理论计算公式，以提高理论计算结果的准确性。
문장침대내치식광가륵골가강적장창단，추도료광가륵골림계강도적이론계산공식，급출료창단광가륵골림계강도적계산방법；통과 ANSYS 유한원연건，비교분석료창단실은림계압력이론공식계산결과여유한원계산결과지간적오차，지출현행창단실은림계압력이론계산공식존재일정적괄용범위；이창단실은압력유한원결과위수정기준치，인입수정계수 k 수정이론계산공식，이제고이론계산결과적준학성。
A theoretical expression of all-round frame’s critical rigidity which is set in the long cabin is de-duced, and also the way to compute the critical rigidity is introduced. The inaccuracy between the results of analytical formula and finite element analysis is analyzed via ANSYS. It points out that the actual theoreti-cal expression for critical pressure of cabin is available within a certain range. And this paper amends the theoretical expression by k to improve the accuracy which is based on the result of finite element analysis.