共查询到19条相似文献,搜索用时 93 毫秒
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累胎室内磨耗模拟试验是以分类法描述的,研究室内磨耗模拟试验的动机是以在减少试验时间和费用的情况下获得一致的试验结果,给出了两种不同的室内试验设备,一种是以计算机(PC)为主的用来测定轮胎磨耗量的激光扫描仪,另一种是装于车辆上的轮胎力测量系统,该系统旨在用来重现试验室道路变化情况,实例研究说明;(1)轮胎负荷变化对磨耗的影响,特别是城市道路转弯,公路行驶,驱动力矩和自由滚动对磨耗的影响;(2)直径为 相似文献
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分析成型工艺中影响半钢子午线轮胎均匀性的因素,考察冠带条缠绕张力和胎面接头量对轮胎均匀性的影响,介绍胎坯均匀性分析系统的应用。结果表明:随着轮胎扁平率增大,冠带条缠绕张力增大,轮胎高速性能下降,但均匀性变化规律不明显,应根据轮胎扁平率控制冠带条缠绕张力;胎面接头量过大和过小时,轮胎径向力波动的最大振幅发生位置集中于胎面接头处,影响轮胎的均匀性。采用胎坯均匀性分析系统可以提前改进胎坯的外观形状,提高产品性能。 相似文献
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载重子午线轮胎胎面磨耗有限元分析 总被引:3,自引:2,他引:1
考虑轮胎的几何、材料以及接触非线性,借助ABAQUS非线性有限元软件建立11.00R20载重子午线轮胎轴对称模型和三维有限元模型,计算得到标准工况下胎面的平均磨耗率,并分析气压、负荷以及行驶速度对胎面磨耗的影响。结果表明:标准工况下轮胎每行驶1万km胎面平均磨耗量(单位磨耗量)大约为1.08 mm;实际气压与标准气压的比值过低或过高都会加剧轮胎的磨耗;轮胎负荷低于标准负荷时,轻微加剧胎冠中心处的磨耗;高于标准负荷时胎肩单位磨耗量明显提高;随着行驶速度的提高,胎面单位磨耗量接近线性增大。 相似文献
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本文通过DCP测试了解炭黑的粒径分布情况,然后根据VMI磨耗实验测得橡胶试样在加入炭黑后的耐磨性能,从而分析研究炭黑粒径分布与轮胎胎面磨耗的关系。 相似文献
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Deshang Han Shoufeng Zhang Kongshuo Wang Yi Pan Donglin Zhu Chuansheng Wang Yiren Pan 《应用聚合物科学杂志》2021,138(31):50761
Prolonged operations of mixers cause wear of mixer rotors and chamber walls and affect the clearances between the rotors and chamber walls, which reduce the mixing effect, weaken the dispersion of the packing, and affect the quality of rubber products. In this study, the effects of traditional mixing and wet mixing on the friction and wear of the chamber, and the properties of rubber were compared by using 60 phr of a silica natural rubber formulation system. The results show that a silanization reaction occurs between silica and the silane coupling agent during the mixing process and that the reaction rate is fastest when the temperature of the mixing chamber is maintained between 145 and 155°C for 1 min during the mixing process. The products of silanization reaction are ethanol and water; the water vapor that forms at high temperatures corrodes the mixing chamber of the internal mixer and aggravates wear and tear. Due to the high dispersion of silica during wet mixing, the silanization reaction is more complete and water vapor is produced at a high temperature. Hence, the rubber compound obtained by wet mixing has more significant wear on the mixing chamber. 相似文献
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Sanjay Bhattacharyya Vivekanda Lodha Saikat Dasgupta Rabindra Mukhopadhyay Abhilash Guha Preetom Sarkar Tuhin Saha Anil K. Bhowmick 《应用聚合物科学杂志》2019,136(18):47560
Rubber industry is facing a stiff challenge in the years to come. There are rising price for fossil fuel and shortage of resources. There is more stringent legislation to protect the environment and reduce the emission. Filler plays an important role in imparting useful properties to rubber products. In this article, the effects of new generation filler, on the physical properties, tearing energy, and abrasion resistance were investigated. The new generation filler, highly dispersible silica, has a dibutyl phthalate (DBP) absorption value of more than 180cc 100 g−1, more branched structure and relatively higher amount of small aggregates. Four different loadings of silica (up to 45 phr) were investigated. With increasing filler loading, the tensile strength and modulus at 300% elongation increased and the elongation-at-break decreased. The rebound resilience decreased and tan delta value improved with increasing silica content. The abradability continuously decreased with concomitant increase in the side coefficient force. The fatigue resistance was found to be better at higher silica loading. The silica particles due to its surface structure helps in crack arresting. The abradibility was related to tearing energy, loss modulus, and breaking energy. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136, 47560. 相似文献