CAJ | 학술논문

通过封闭功率流齿轮试验台测量了齿轮系统温度，首次将有限元法和热弹流法综合起来求解齿轮系统的温度场，在有限元分析理论中引入了黏度-压力-温度和密度-压力-温度方程，精确地确定了对流换热系数。以有限元法得到的本体温度作为热弹流计算的初始温度，得到了啮合线上各点的最高温度和闪温，并且分析了最高温度和闪温沿啮合线的分布规律。结果表明：有限元仿真的本体温度和试验结果吻合良好，热弹流方法计算出来的闪温分布与ISO闪温较为接近，齿轮最高温度区域随着变位系数的增大向齿顶移动。
통과봉폐공솔류치륜시험태측량료치륜계통온도，수차장유한원법화열탄류법종합기래구해치륜계통적온도장，재유한원분석이론중인입료점도-압력-온도화밀도-압력-온도방정，정학지학정료대류환열계수。이유한원법득도적본체온도작위열탄류계산적초시온도，득도료교합선상각점적최고온도화섬온，병차분석료최고온도화섬온연교합선적분포규률。결과표명：유한원방진적본체온도화시험결과문합량호，열탄류방법계산출래적섬온분포여ISO섬온교위접근，치륜최고온도구역수착변위계수적증대향치정이동。
The temperature of gear systems was measured with a closed power flow gear test rig. It is the first time that the temper-ature fields of gear systems were solved by combining finite element method and thermal elastohydrodynamic lubrication method. To get the convection heat transfer coefficient accurately, the viscosity-pressure-temperature equation and the density-pressure-temperature equation were introduced to finite element analysis. The highest temperature and flash temperature of each point in the meshing line and their distribution laws along the line of action were obtained with the bulk temperature solved with finite element method as the initial temperature of the thermal elastohydrodynamic lubrication calculation. The results show that the bulk temperature solved with finite element method is consistent with the test results. The flash temperature distribution calculated with thermal elastohydrodynamic lubri-cation method is close to the ISO flash temperature. With increasing modification coefficient, the highest bulk temperature area trans-fers from the dedendum to the addendum.