影响汽车振动噪声的因素有设计、材料、胎压、结构、路况等，研究轮胎充气压力变化对轮胎和整车振动噪声的影响。
The influencing factors of noise and vibration of vehicles are material, tire pressure, vehicle's structure, road conditions, and so on.
研究结果表明：轮胎的动刚度不是常数，它随着垂直载荷、充气压力的增加而增大；滚动时的动刚度不同于静刚度。
It has been shown that the tire dynamic stiffness is not a constant, which increases with the vertical load and inflation pressure, and it is different from the static one.
它还能够有助于改善充气压力保持率（IPR），这一点已在改善老化轮胎的耐久性方面得到了证实。
Better inflation pressure retention (IPR) afforded by halobutyl rubber has been demonstrated to improve the durability of aged tires.
试验研究轮胎负荷、充气压力和旋转速度对国内外不同轮胎生产企业195/65R15和205/55R16轮胎滚动阻力的影响。
The effects of the load, inflation pressure and rotating speed on the rolling resistances of 195/65R15 and 205/55R16 tires from different manufacturers were experimentally investigated.
子午线轮胎气密层对于轮胎保持充气压力，提高轮胎耐久性和行驶安全性具有重要的作用。
The function of inner liner is to maintain proper inflation pressure, thereby enhancing the durability of tires and driving safety.
子午线轮胎气密层对于轮胎保持充气压力，提高轮胎耐久性和行驶安全性具有重要的作用。
The function of inner liner is to maintain proper inflation pressure, thereby enhancing the durability of tires and driving safety.
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