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行驶中的汽车,轮胎在很短时间内失去全部空气叫做爆胎。爆胎是车辆在使用过程中的突发事故,是安全行驶的大敌。本文就爆胎的原因、预防和应变及对各种路况发生爆胎现象进行分析。 一、爆胎的原因及应变 1.轮胎气压不正常。轮胎气压高低,不仅关系到轮胎的使用寿命,而且涉及到油耗及行车安全。胎压过高或不足,都会加剧轮胎的磨损。气压过高,易加速胎面中间的磨损,特别是前轮的气压过高遇障碍物爆胎或突然消气时,一边阻力会突然增大,迫使车辆急速调头,使驾驶员无法控制行车方向,造成翻车伤人等交通事故。 气压不足则易引起胎面两边的磨损。因此,要使轮胎经常保持在标准气压允许的范围内,还应注意前轮左右胎气压一致;后轮两外档胎气压一致,后胎两内档胎气压一致。驾驶员最好随身带气压测试器,以便检查胎压。 相似文献
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(1)检查轮胎的气压。无论是充气过度还是充气不足,都会对车辆行驶和胎面耐磨性能产生负面影响。因此至少每个月或每次长途旅行前应检查一次胎压,包括备用胎。检查胎压时应在冷胎状态下进行,即行驶不超过1 km或至少停车3小时以后检查。 相似文献
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早期建造的桥梁由于横隔梁配筋不足或设置不合理等造成横向刚度不足、联系较弱;随着城市的发展,超载现象越来越严重,因超载车辆的荷载远远超过规范中桥梁的设计载荷而使桥梁不堪重负,主梁在超载作用下纵向抗裂能力不足,桥梁裂缝进一步扩展,造成桥梁早期破坏。文中以某立交跨线桥为例,对横向联系较弱的梁桥进行受力分析,并提出加固及处理方案。 相似文献
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1轮胎压力监测系统的作用、组成及原理
轮胎压力监测系统(TPMS)监测所有轮胎的气压,并向驾驶人提供任一轮胎是否中度充气不足的信息,或在任一轮胎明显充气不足时向驾驶人发出警告。轮胎压力监测系统也向驾驶人提供任一轮胎是否充气过度的信息,或给定的车桥上左右轮胎之间的气压有很大偏差的信息。轮胎压力监测系统大大提高了车辆的行驶安全性。 相似文献
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轮胎是汽车行驶系的主要部件之一。据估算,花在汽车轮胎上的维修费用约占汽车正常维修费用的30%。轮胎性能的优劣直接影响汽车的牵引性、通过性、稳定性、安全性及舒适性等。因此,正确使用和维护,防止轮胎早期损坏,对节约成本、提高车辆使用效益和保证行车安全都有重要意义。汽车轮胎使用时的注意事项1.严格控制轮胎的负荷轮胎负荷是根据轮胎的结构、帘布层数的强度以及使用气压和速度等经过计算确定的。车辆超载行驶时,轮胎承受的负荷、变形增大,胎体所承受的应力相应增加,胎面与路面的接触面增大,相对滑移加剧,磨损加快。特别是胎侧的 相似文献
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<正>部队装备的柴油车大多为中型以上运输车或牵引车,均装用储能式弹簧制动缸,车辆在起步前须使储气筒气压达到解除驻车制动气压方可起步,如果蓄电池无电或存电不足,气压达不到有效解除弹簧制动缸的 相似文献
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哈韩派多是追求时尚年轻人,韩剧则是他们的启蒙老师。本人虽不迷这个,但了认可韩剧确有其独特之处。如今,那些涉猎广泛的哈韩派又有了新宠。两年多前,《汽车与运动》曾测试过锦湖ECSTA系列的KU28轮胎。主打舒适节油的它,凭借轻量化的胎身赢得了我们的认可。那时,我就曾翻开字典,试图寻找"ECSTA"的含义,但以失败告终。不过,与其形似的"Ecstasy"却暗示了 相似文献
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《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(4):231-260
SUMMARY This article begins with a brief review of the traditional concept of lateral relaxation length. The review illustrates that this concept yields a useful approximation which can be used with semi-empirical tire models which assume lateral forces are a function of steady-state slip angles. The article then presents an analogous derivation for longitudinal slip. Like its lateral counterpart, the derivation yields an approximation for transient longitudinal slip which can be used with tire models which assume longitudinal forces are a function of steady-state longitudinal slip. It is shown that, like the relaxation-length-based lateral slip angle, this formulation for longitudinal slip yields the ability to compute shear forces at the tire/road interface for either high or low speed applications, a necessary feature of simulations which support human in the loop driving simulation. Like traditional kinematically-based longitudinal slip, the transient formulation presented here is coupled with the wheel spin equation, and it shares the characteristic that it is very stiff compared to the equations of vehicle motion. This characteristic is a challenge impeding the real-time calculations required for driving simulation. The paper shows that local linearization of the wheel spin equations coupled with analytical solutions of the transient longitudinal slip formulation provide the basis for both insight into the longitudinal dynamics of the tire and for integrating the model in real-time. 相似文献
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C.L. Clover J.E. Bernard 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》1998,29(4):231-260
This article begins with a brief review of the traditional concept of lateral relaxation length. The review illustrates that this concept yields a useful approximation which can be used with semi-empirical tire models which assume lateral forces are a function of steady-state slip angles. The article then presents an analogous derivation for longitudinal slip. Like its lateral counterpart, the derivation yields an approximation for transient longitudinal slip which can be used with tire models which assume longitudinal forces are a function of steady-state longitudinal slip. It is shown that, like the relaxation-length-based lateral slip angle, this formulation for longitudinal slip yields the ability to compute shear forces at the tire/road interface for either high or low speed applications, a necessary feature of simulations which support human in the loop driving simulation. Like traditional kinematically-based longitudinal slip, the transient formulation presented here is coupled with the wheel spin equation, and it shares the characteristic that it is very stiff compared to the equations of vehicle motion. This characteristic is a challenge impeding the real-time calculations required for driving simulation. The paper shows that local linearization of the wheel spin equations coupled with analytical solutions of the transient longitudinal slip formulation provide the basis for both insight into the longitudinal dynamics of the tire and for integrating the model in real-time. 相似文献
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