搜索结果: 1-10 共查到“工学 tire”相关记录10条 . 查询时间(0.031 秒)
Tire-related chemical is largely responsible for adult coho salmon deaths in urban streams（图）
Tire-related chemical coho salmon deaths urban streams
2020/12/11
Every fall, more than half the coho salmon that return to Puget Sound's urban streams die before they can spawn. In some streams, all die. But scientists didn't know why.Now, a U.S. National Scie...
Impacts of Central Tire Inflation Systems application on forest transportation – Review
timber transportation road maintenance transportation cost vehicle mobility fuel consumption safety
2017/6/26
Central Tire Inflation Systems (CTIS) have been introduced to forestry transportation in the last 30 years to the point the forest industry is one of the biggest users of the technology (Pletts 2006)....
基于侧向变刚度的轮胎多边形磨损机理分析（Mechanism of Polygonal Wear of Tire Based on Variable Stiffness of Lateral）
车辆 轮胎 多边形磨损 变刚度 机理
2010/12/29
考虑轮胎接地摩擦的非线性特性，建立了基于侧向变刚度的轮胎多边形磨损模型，并对系统的稳定性进行了分析，指出轮胎的自激振动是一种由系统Hopf分岔引起的稳定周期振动现象，通过数值仿真得到了引起胎面自激振动的车速和车轮前束角范围。结果表明：轮胎多边形磨损为一种典型的非线性自激振动现象，其发生与胎面的侧向振动有关，磨损边数近似等于胎面的侧向振动频率与车轮转动频率之比。所建模型能够很好地解释轮胎多边形磨损的...
Real-time Tire Parameters Observer for Vehicle Dynamics Stability Control
tire longitudinal stiffness cornering stiffness vehicle dynamics stability
2011/8/3
The performance of the vehicle dynamics stability control system(DSC) is dominated by the accurate estimation of tire forces in real-time. The characteristics of tire forces are determined by tire dyn...
The Fatigue Behaviour of Asphaltic Concrete Made With Waste Shredded Tire Rubber Modified Bitumen
Fatigue Asphaltic concrete Modified bitumen
2009/10/13
Pavement failure can be manifested by excessive cracking due to fatigue. Highway pavements are subjected to a repeated passage of wheel loading of varying magnitude and intensity. Fatigue has been def...
基于修正Craig-Bampton方法的轮胎动态子结构模型（Dynamic Substructure Tire Model Based on Modified Craig-Bampton Method）
轮胎 整车动力学模型 有限元法
2009/9/25
以轮胎模态试验获取的模态参数和参数化轮胎有限元模型为基础，通过优化方法使有限元模型的计算模态参数与试验模态参数一致，获得动力学等效的轮胎模型，将该模型视作连接车辆与地面的子结构，基于修正的Craig-Bampton方法和轮胎接地界面特性，得到轮胎子结构的主模态集和约束模态集，使用模态综合方法实现轮胎子结构模型与车辆多体动力学模型的耦合，此模型可广泛应用于车辆平顺性仿真和整车动态优化设计。
基于全轮纵向力优化分配的4WD车辆直接横摆力矩控制（4WD Vehicle DYC Based on Tire Longitudinal Forces Optimization Distribution）
车辆 直接横摆力矩控制 四轮独立驱动
2009/8/11
为了充分利用四轮独立驱动(4WD)与直接横摆力矩控制(DYC)各自的优势，提出了基于全轮纵向力优化分配的4WD车辆DYC系统方案。利用改进的2DOF车辆模型制定DYC稳定性控制目标，设计基于最优动态滑模的“前馈＋反馈”DYC控制器。建立全轮纵向力优化分配模式，结合HSRI轮胎模型设计了降低整车路面附着负荷的目标函数，并通过约束优化得出全轮纵向力分配值。研究表明，全轮纵向力优化分配可提高整车路面附着...
Tire Skid Resistance on Contaminated Wet Pavements
Tire Skid Resistance Pavement Contamination Wet Pavement
2010/1/15
An experimental test rig has been designed, fabricated, and used to study the effect of wet pavement contamination on the tire-pavement skid resistance. Results showed that although precipitation wate...
Effects of Different Tire Configurations on Tractor Performance
Tractor Performance Tire Configuration Bias and Radial Tires
2009/1/12
The effects of tire ply constructions (radial and bias) and tire arrangements (singles and duals on rear the axle) on tractor performance were evaluated for 2 gear levels on 2 different fields covered...
Major difficulties in road surface description lies in the evaluation of the tire and road interaction. Main purpose of this paper - is to analyse the influence of the tire in vehicle and road interac...