| 基于曲线拟合的轮胎PRAT计算方法分析 |
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| 引用本文： | 卢荡,索艳茹. 基于曲线拟合的轮胎PRAT计算方法分析[J]. 轮胎工业, 2016, 36(4) |
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| 作者姓名： | 卢荡 索艳茹 |
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| 作者单位： | 吉林大学汽车仿真与控制国家重点实验室,吉林大学汽车工程学院 |
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| 基金项目： | “973”国家重点基础研究发展规划项目(2011CB711201). |
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| 摘 要： | 轮胎PRAT(Plysteer Residual Aligning Torque)的值一般较小,计算PRAT所需轮胎力学特性的测试精度要求较高,对测试数据的不同处理方法也会得到不同的PRAT值。本文介绍了三种测试数据的曲线拟合方法,通过分析得出三次多项式曲线拟合法可以更方便地得到较精确的PRAT值。
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| 关 键 词： | PRAT 曲线拟合 精度 |
The analysis of tire PRAT calculation method based on curve fitting |
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| LU Dang and SUO Yan-ru. The analysis of tire PRAT calculation method based on curve fitting[J]. Tire Industry, 2016, 36(4) |
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| Authors: | LU Dang and SUO Yan-ru |
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| Affiliation: | State Key Laboratory of Automobile Simulation and Control,Jilin University,Automotive Engineering College,Jilin University |
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| Abstract: | Tire PRAT (Plysteer Residual Aligning Torque) is normally small. To calculate PRAT, the testing accuracy of tire mechanical property should be high and different data processing methods lead to different PRAT. In this paper, three different curve-fitting data processing methods are introduced, and we foundd that cubic polynomial curve-fitting can get more accurate PRAT in a more convenient way . |
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| Keywords: | PRAT Curve-fitting Accuracy |
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