CAJ | 학술논문

影响试验机转轴最大静态应力的结构参数比较多,如果以降低最大静态应力为目标对转轴进行设计时考虑所有的参数,则会大大增加设计的时间和成本。以最大静态应力为指标,利用正交设计试验法,对主要结构参数进行灵敏度分析,筛选出灵敏度较高的设计变量,可以在一定程度上简化设计模型,提高设计速度,计算结果为此类轴类零件的设计提供了参考。根据分析文中得出如下结论：转轴所受的最大静态应力小于其材料的屈服极限；以转轴最大静态应力为指标,各结构参数按灵敏度绝对值从大到小依次为：R3,R1,R2,L8,L2,R4,L9,L3,L1,L4,L6,L7,L5。
영향시험궤전축최대정태응력적결구삼수비교다,여과이강저최대정태응력위목표대전축진행설계시고필소유적삼수,칙회대대증가설계적시간화성본。이최대정태응력위지표,이용정교설계시험법,대주요결구삼수진행령민도분석,사선출령민도교고적설계변량,가이재일정정도상간화설계모형,제고설계속도,계산결과위차류축류령건적설계제공료삼고。근거분석문중득출여하결론：전축소수적최대정태응력소우기재료적굴복겁한；이전축최대정태응력위지표,각결구삼수안령민도절대치종대도소의차위：R3,R1,R2,L8,L2,R4,L9,L3,L1,L4,L6,L7,L5。
It is well-known that there is a large mount of size parameters impact the static stress of the shaft of test machine. It is greatly increasing that the cost and time of the design to reduce the static stress of the shaft considering all structural parameters. This paper presents the static sensitivity analysis for all structural parameters employing orthogonal design method to decide the design variables. By this the design model can be simplified and the design speed can be improved to certain extent, and the results put the basis for the fu-ture design of shaft parts. In this paper, it can be concluded that the static stress of the shaft in the operation is less than the yield stress of the material. What’ s more, taking the static stress as an indicator, according to the absolute size of the sensitivity structural parameters in decreasing order of size are R3, R1, R2, L8, L2 , R4 , L9 , L3 , L1 , L4 , L6 , L7 , L5 .