课程文献中心 更多>>

关键词： SX2190型   汽车离合器   故障排除   控制阀   漏气   换挡过程   离合器踏板   故障现象  

摘要： 故障现象：一辆陕汽SX2190型汽车，在多次使用离合器进行换挡过程中，出现踩离合器踏板沉重、换挡困难、同时气压降落现象。

关键词： 离合器   故障分析   排除  

摘要： 对农用车离合器常见的打滑、分离不彻底、抖动故障进行分析,指出了故障产生的原因,提出了故障的诊断排除方法。

关键词： 汽车   离合器   摩擦片   发展与应用  

摘要： 由于实际汽车行驶过程中,速度不稳定,再加上摩擦式离合器柔度高,能减少离合器结合过程中的冲击和振动,对其他的零件的损伤小,因而广泛应用于汽车制造领域。

关键词： 摩擦式离合器   性能分析   参数选取  

摘要： 摩擦式离合器是汽车传动系统中比较重要的一个零部件,主要控制传动系统的动力传动的通断控制。以别克君威2.0L轿车为例,根据整车性能及要求,按照相关标准,通过分析计算,选取其对应的离合器参数,为后续建模打下基础。

关键词： Clutches (Machinery) -- Evaluation  

摘要： The article evaluates the Advantage Series heavy-duty clutches from Eaton Corp. PLC.

关键词： Antioxidant capacity   Crested penguins   Female condition   Maternal transfer   Oxidative status   Stable isotope   LAYING-SEQUENCE VARIATION   BARN SWALLOW EGGS   ROCKHOPPER PENGUINS   OXIDATIVE STATUS   MATERNAL DEPOSITION   YOLK ANTIOXIDANTS   STEROID-HORMONES   TRADE-OFFS   FEMALE   CAROTENOIDS  

摘要： Oviparous females need to allocate resources optimally to their eggs in order to maximize their fitness. Among these resources, dietary antioxidants, acquired by females and transferred to the eggs during egg formation, can greatly affect the development and survival of the embryo and chick. In crested penguins, incubation starts after the second and last egg is laid and, as opposed to many other bird species, this egg hatches first, thereby enhancing the survival of the chick. Here, we assessed whether antioxidant and isotopic composition could underlie these differences between eggs within clutches of southern rockhopper penguins (Eudyptes cluysocome cluysocome). The second-laid egg had higher total antioxidant capacity than the first-laid egg, although this was not due to higher antioxidant concentration but to its higher mass. This suggests that resources are allocated by females at a constant rate in both eggs within clutches. Accordingly, we found a strong correlation for isotopic compositions between eggs suggesting that resources were allocated similarly to each egg within the clutch. Overall, we found little evidence for a significant role of antioxidant and isotopic compositions to explain differences in terms of embryo/chick development between eggs in crested penguins. However, since our results suggest a constant rate of antioxidant transfer from females to eggs, limiting the mass of the first-laid egg might represent a strategy for females to spare antioxidant defences and preserve self-maintenance. (C) 2017 Elsevier Inc. All rights reserved.

关键词： 转向离合器   打滑   预防措施  

摘要： 对履带拖拉机转向离合器打滑原因进行了详细分析,指出离合器中污染摩擦片润滑油的来源,提出了预防离合器打滑的措施。