共查询到19条相似文献,搜索用时 343 毫秒
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利用轮胎模态参数模型对稳态工况下的轮胎滚动阻力进行模拟.计算了不同胎面阻尼下的滚动阻力,所得结果与实际的趋势相符,数值合理.对不同半径转鼓下轮胎滚动阻力的模拟结果与按ISO 181964推荐的公式计算的结果有良好的一致性.表明了该轮胎模型的合理性. 相似文献
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近年来随着汽车产业的飞速发展,汽车制造商开始对轮胎提出降低滚动阻力的要求,低滚动阻力轮胎已成为各大轮胎公司重点关注的课题。本文采用ABAQUS软件,开发轮胎滚动阻力有限元仿真模型,用于预测轮胎的滚动阻力和滚动阻力系数,并和试验结果进行对比,验证了模型的可靠性。 相似文献
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汽车轮胎非稳态温度场的有限元分析与试验验证 总被引:1,自引:0,他引:1
建立了滚动轮胎三维力学分析有限元模型,在对轮胎力学场有限元分析的基础上,采用傅立叶级数拟合滚动轮胎应力应变并计算轮胎节点生热率,作为节点载荷导入到温度场有限元模型中.分析了轮胎在额定工况下的温升温度场变化.通过台架试验表明,计算值与试验值基本一致,验证了该有限元分析方法的可行性. 相似文献
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轮胎在水平路面上的自由滚动接触分析 总被引:2,自引:0,他引:2
利用轮胎的模态参数直接对轮胎在水平路面上的滚动建立了便于解析计算的仿真模型。该模型可模拟轮胎稳态的滚动过程并可计算出不小同工况下的滚动特性、有效滚动半径、载荷与下沉量的关系以及印迹内变形和分布力。计算结果揭示了以往模型难以描述的微观现象,与以往文献的试验研究结果定性一致,充分显示了模型的合理性。 相似文献
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In-plane Dynamics of Tires on the Road Based on an Experimentally Verified Rolling Ring Model 总被引:3,自引:0,他引:3
Shyh-Chin HUANG Associate Professor Chen-Kai SU Graduate Student 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》1992,21(1):247-267
The dynamic behavior of tires rolling on the road is predicted based on a ring model that is experimentally verified to well represent a real tire. The road contact is kinematically represented by two displacement constraints, one in radial and one in tangential direction. The displacement constraints are enforced via the receptance theory. The receptance matrix developed for the rolling tire is found to be Hermitian. Numerical results show that the natural (or eigen-) frequencies of the rolling tire with road contact are, as expected, higher than those of the tire with no contact. The influence of the rotating speed to the eigen-frquencies of the tire is also shown. Analytic expressions for the mode shapes of a rolling tire with ground contact are derived. 相似文献
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《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(1):247-267
SUMMARY The dynamic behavior of tires rolling on the road is predicted based on a ring model that is experimentally verified to well represent a real tire. The road contact is kinematically represented by two displacement constraints, one in radial and one in tangential direction. The displacement constraints are enforced via the receptance theory. The receptance matrix developed for the rolling tire is found to be Hermitian. Numerical results show that the natural (or eigen-) frequencies of the rolling tire with road contact are, as expected, higher than those of the tire with no contact. The influence of the rotating speed to the eigen-frquencies of the tire is also shown. Analytic expressions for the mode shapes of a rolling tire with ground contact are derived. 相似文献
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为了提高仿真模型的计算效率,基于环模型理论系统研究了轮胎二维有限元模型的建模技术、参数确定方法和轮胎包容特性分析技术.从试验与仿真结果对比分析可知,利用有限元方法基于轮胎REF模型建模,在对轮胎胎侧弹性进行非线性模型修正后,得到的轮胎低速滚动仿真结果与试验结果基本吻合,验证了轮胎模型的有效性,同时为车辆一地面系统虚拟试验提供了一种实时高精度的轮胎面内特性仿真建模方法. 相似文献
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H. W. Lee J. R. Cho W. B. Jeong K. M. Jeong K. W. Kim 《International Journal of Automotive Technology》2014,15(3):411-417
This paper is concerned with the numerical prediction of the hysteretic loss-induced rolling resistance of 3-D periodic patterned tire. Elastomeric rubber compounds of rolling tire exhibit the hysteretic loss owing to the phase difference between stress- and strain-time responses. By virtue of this physical characteristic, the rolling resistance is considered as a pseudo-force resisting the tire rolling. The 3-D periodic patterned tire model is constructed by copying an 1-sector mesh in the circumferential direction, and strain cycles of each strain component are approximated by 3-D static tire contact analysis. According to the principal value of half strain amplitudes, the hysteretic loss is calculated in terms of the amplitude of the maximum principal strain and the loss modulus of rubber compound. The numerical results of 3-D periodic patterned tire are justified with the experimental data and compared with those of 3-D smooth tire. 相似文献
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J. Yang G. L. Wang Z. J. Wan C. Liang H. C. Zhou 《International Journal of Automotive Technology》2016,17(4):639-649
Two types of radial tire 11.00R20 and 385/65R22.5 are chosen as the research objects, and their carcass contours are redesigned by using Sakai Hideo’s, Frank’s and the new non-natural equilibrium contour design theories, which were based on analyzing the current non-equilibrium contour design theories of radial tire. Then the tire wear, rolling resistance and grip performance of the two radial tires designed by different non-natural equilibrium contour design theories are comprehensively analyzed with the finite element software ABAQUS. The results show that Frank’s contour design theory can reduce tire wear; the new non-natural equilibrium contour design theory can enhance tire wear, rolling resistance performance, etc. It is also found that the tire carcass contour has great influence on tire performance, especially on the tire rolling resistance. The new non-natural equilibrium contour theory provides a guidance to reduce the tire rolling resistance, and it can break through the target conflicts in tire performance. The tire with the new non-natural equilibrium carcass contour can enhance its comprehensive performance. 相似文献
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台试与路试轮胎滚动阻力关联性研究 总被引:2,自引:0,他引:2
分析了台试与路试轮胎滚动阻力影响因素的内在联系;建立了台试与路试轮胎滚动阻力关联性模型;揭示了台试与路试轮胎滚动阻力之间的差异;解决了通过台试试验求解道路滚动阻力问题。 相似文献