润滑与密封
潤滑與密封
윤활여밀봉
Lubrication Engineering
2015年
10期
61-64
,共4页
摩擦片%导热系数%比热容%温度场
摩抆片%導熱繫數%比熱容%溫度場
마찰편%도열계수%비열용%온도장
friction plate%thermal conductivity%specific heat capacity%temperature field
采用 Abaqus模拟盘式制动器制动过程的三维瞬态温度场，研究摩擦片材料的比热容和导热系数对其制动过程中温度分布的影响。结果表明：增大摩擦片材料导热系数可以降低摩擦片的轴向和径向温度梯度，但会增大摩擦面瞬时最高温度；增大摩擦片材料的比热容对降低摩擦面瞬时最高温度效果较好，但会增大摩擦材料轴向和径向的温度梯度；和导热系数相比，比热容变化对摩擦片瞬时最高温度的影响更为显著；同时增大比热容和导热系数可以达到既降低瞬时最高温度又减小轴向和径向温度梯度的作用。
採用 Abaqus模擬盤式製動器製動過程的三維瞬態溫度場，研究摩抆片材料的比熱容和導熱繫數對其製動過程中溫度分佈的影響。結果錶明：增大摩抆片材料導熱繫數可以降低摩抆片的軸嚮和徑嚮溫度梯度，但會增大摩抆麵瞬時最高溫度；增大摩抆片材料的比熱容對降低摩抆麵瞬時最高溫度效果較好，但會增大摩抆材料軸嚮和徑嚮的溫度梯度；和導熱繫數相比，比熱容變化對摩抆片瞬時最高溫度的影響更為顯著；同時增大比熱容和導熱繫數可以達到既降低瞬時最高溫度又減小軸嚮和徑嚮溫度梯度的作用。
채용 Abaqus모의반식제동기제동과정적삼유순태온도장，연구마찰편재료적비열용화도열계수대기제동과정중온도분포적영향。결과표명：증대마찰편재료도열계수가이강저마찰편적축향화경향온도제도，단회증대마찰면순시최고온도；증대마찰편재료적비열용대강저마찰면순시최고온도효과교호，단회증대마찰재료축향화경향적온도제도；화도열계수상비，비열용변화대마찰편순시최고온도적영향경위현저；동시증대비열용화도열계수가이체도기강저순시최고온도우감소축향화경향온도제도적작용。
The three?dimensional transient temperature field for disk?brake were simulated using software ABAQUS to study the effects of specific heat capacity and thermal conductivity on the temperature distribution of the brake material during its braking process.The results show that the temperature gradient in the axial and radial direction of friction plate can be reduced,while the transient maximum temperature on the friction surface can be increased by increasing the thermal conductivity of friction plate.The transient maximum temperature of friction surface can be reduced,while the temperature gradient in the axial and radial direction of friction plate can be increased by increasing the specific heat capacity. Com?pared to the thermal conductivity,the specific heat capacity has more significant effect on the maximum transient tempera?ture of friction plate.The maximum transient temperature and the axial and radial temperature gradient can be reduced by increasing the specific heat capacity and the thermal conductivity at the same time.
