基于接地特性的轮胎滑水速度与噪声性能关系

Relationship between the tire hydroplaning speed and noise performance based on grounding characteristics

为获取轮胎接地特性参数,选取10条不同厂家生产的205/55R16型子午线轮胎为研究对象,进行轮胎接地压力分布试验。采用相关分析法研究轮胎接地特性参数与滑水速度和噪声的关联关系,通过轮胎接地特性参数进一步验证滑水速度与噪声性能间的矛盾关系;利用主成分分析法提出表征滑水速度与噪声矛盾关系的评价参数。结果表明:第三长轴系数、第二长轴系数、接地系数等11个接地特性参数为矛盾参数,其与滑水速度和噪声的相关关系相同,即两性能呈现出矛盾关系;接地长和接地宽为非矛盾参数,其与滑水速度存在正相关关系,与噪声存在负相关关系。矛盾参数对滑水速度和噪声性能影响显著,非矛盾参数对其影响较小。接地长轴系数和接地系数对滑水速度与噪声矛盾关系的影响最为显著,可将其作为表征两性能矛盾关系的评价参数。

In order to obtain the parameters of tire grounding characteristics,ten 205/55 R16 radial tires manufactured by different manufacturers were selected to test the tire grounding pressure distribution.The correlation between the parameters of the tire grounding characteristic and the hydroplaning speed and noise was studied by correlation analysis method. The contradictory relationship between the hydroplaning speed and the noise was further verified by the grounding characteristic parameters.The relationship between the hydroplaning speed and the noise was presented by the principal component analysis of the evaluation parameters.The results show that the eleven parameters such as the third long axis coefficient,the second long axis coefficient and the grounding coefficient are the contradictory parameters,which are related to the hydroplaning speed and noise.That is,the two performances exist contradictory relationship.The ground length and theground width are non contradictory parameters, which have a positive correlation with the hydroplaning speed and have a negative correlation with the noise.The contradictory parameters have significant impact on the hydroplaning speed and noise performance,while,the non contradictory parameters have little influence.The influence of the long axis coefficient and the grounding coefficient on the relationship between hydroplaning speed and noise is the most momentous,which can be used as an evaluation parameter to characterize the contradiction between two performances.