| 减速度非线性变化对制动距离影响分析 |
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| 引用本文： | 杨军,张伟光,陈先华. 减速度非线性变化对制动距离影响分析[J]. 东南大学学报(自然科学版), 2011, 41(4): 848-853. DOI: 10.3969/j.issn.1001-0505.2011.04.036 |
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| 作者姓名： | 杨军 张伟光 陈先华 |
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| 作者单位： | 东南大学交通学院,南京,210096 |
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| 基金项目： | 国家自然科学基金资助项目(51078089) |
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| 摘 要： | 为避免减速度线性变化的假设造成制动距离计算值与实测值之间的偏差,回归了减速度与时间非线性关系式,并推导了减速度非线性变化时制动距离计算公式.建立轮胎-路面三维有限元模型,计算了在干燥与潮湿2种路表状况下制动减速度线性和非线性变化时的制动距离.结果表明:减速度线性和非线性变化计算所得制动距离,对于干燥路表差别不大,潮湿路...
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| 关 键 词： | 制动距离 减速度 非线性变化 有限元模型 干燥路表 潮湿路表 |
Influence analysis of non-linear variation of deceleration on braking distance |
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| Yang Jun,Zhang Weiguang,Chen Xianhua. Influence analysis of non-linear variation of deceleration on braking distance[J]. Journal of Southeast University(Natural Science Edition), 2011, 41(4): 848-853. DOI: 10.3969/j.issn.1001-0505.2011.04.036 |
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| Authors: | Yang Jun Zhang Weiguang Chen Xianhua |
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| Affiliation: | Yang Jun Zhang Weiguang Chen Xianhua(School of Transportation,Southeast University,Nanjing 210096,China) |
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| Abstract: | To avoid deviation of braking distance between theoretical calculated value and field measured results caused by the assumption of linearly varied braking deceleration,math formula of non-linear braking deceleration and braking time was regressed.Based on this formula,braking distance computation equation was deduced.Three dimensional finite-element model of tire-pavement was also established to investigate variation of braking distance using linear and non-linear deceleration.Results indicate that for dry ... |
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| Keywords: | braking distance braking deceleration non-linear variation finite element model dry pavement surface wet pavement surface |
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