CAJ | 학술논문

　　复杂机械产品零部件的强度受多因素影响，且这些影响因素与零部件强度之间的关系非常复杂，常常难以建立其解析的数学模型，这给复杂机械产品零部件强度设计缺陷的辨识带来了困难。以球笼式等速万向联轴器为研究对象，将其内外沟道的接触应力作为强度判断的依据，将历史设计方案中影响零部件接触应力的设计参数作为因变量，建立接触应力与各相关影响因素的回归方程，通过拟合后的回归方程分析各因素对内外沟道强度的影响程度，计算出各影响因素的最大拟合误差值。将新设计方案中影响零部件接触应力的设计参数代入回归方程，求得参数设计值与回归方程的输出值之间的差值，将此差值与回归方程最大拟合误差值进行对比分析，辨识出球笼式等速万向联轴器设计中存在的强度设计缺陷，有效提高了设计质量和效率。
　　복잡궤계산품령부건적강도수다인소영향，차저사영향인소여령부건강도지간적관계비상복잡，상상난이건립기해석적수학모형，저급복잡궤계산품령부건강도설계결함적변식대래료곤난。이구롱식등속만향련축기위연구대상，장기내외구도적접촉응력작위강도판단적의거，장역사설계방안중영향령부건접촉응력적설계삼수작위인변량，건립접촉응력여각상관영향인소적회귀방정，통과의합후적회귀방정분석각인소대내외구도강도적영향정도，계산출각영향인소적최대의합오차치。장신설계방안중영향령부건접촉응력적설계삼수대입회귀방정，구득삼수설계치여회귀방정적수출치지간적차치，장차차치여회귀방정최대의합오차치진행대비분석，변식출구롱식등속만향련축기설계중존재적강도설계결함，유효제고료설계질량화효솔。
Part strengths of complex mechanical products are influenced by many factors ,relation-ships between part strengths and these influence factors are very complex ,it is usually difficult to build analytical mathematic models for relationships between them ,this brings many difficulties to identify strength design defects of complex mechanical products .Taking rzeppa constant veloc-ity joint (RCVJ) as the research object ,the contact stress between inside and outside channel of RCVJ was treated as a basis for determining strength of RCVJ ,the historical design parameters for the previous design schemes were treated as dependent variables ,the regression equations be-tween contact stress and its influence factors were established ,by analyzing regression equation , the influences of various factors on the strength of inside and outside channel were derived ,the maximum fitting errors for various influence factors were also calculated from regression equa-tions .Design parameters of new design schemes were introduced into regression equations ,then the differences between the regression equation outputs and the design parameters were compu-ted ,by contrasting with the maximum fitting errors ,the design defects on strength of RCVJ were identified ,design quality and design efficiency were improved effectively .