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负重轮轮胎滚动阻力数学模型及分析 总被引:4,自引:0,他引:4
研究了滚动阻力发生机理,指出了负重轮轮胎滚动阻力发生机理与充气轮胎有本质区别;建立了滚动阻力的数学模型,讨论了滚动阻力的影响因素,为负重轮轮胎设计和性能提高提供了理论依据。 相似文献
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闭锁式变矩器闭解锁过程动态特性的研究 总被引:1,自引:0,他引:1
本文应用计算机仿真技术,研究具有闭解锁所谓D430传动系统的车辆液力变矩器的动态过程,计算并分析新得到的有关操作压力油,第三阶段充油时间,输出力矩影响特性,调速器型式等有关方向。 相似文献
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负重轮轮盘结构优化减重分析 总被引:1,自引:0,他引:1
建立了负重轮有限元结构优化模型,并进行了试验验证。在对优化算法进行分析的基础上,以计算结果中表示负重轮轮盘刚度和强度的应力值与变形量为约束条件,把负重轮轮盘重量设为目标函数,对负重轮进行了有效的结构优化,使负重轮的受力状况得到显著改善,且重量减轻10%以上,从而为工程中进行其他优化分析提供了理论与实践参考依据。 相似文献
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本文描述了在振动信号处理时,对功率谱和传递函数进行数学运算的方法,利用该方法,成功地消除了轮胎侧偏动力学实验中轮辋和测量仪器惯性力及其它噪声信号的影响. 相似文献
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A new kind of material cast polyurethane elastomers (CPUE) is introduced to take the place of rubber on load-bearing wheel for the first time. Based on load-bearing wheel dimensions, material properties and operat-ing conditions, the structure of wheel flange is optimized by zero-order finite element method. A detailed three-di-mensional finite element model of flange of load-bearing wheel is developed and utilized to optimize structure of wheel flange. Its service life, which is affected by flange structure parameter, is analyzed by comparing the opti-mization results with those of prototype of wheel. The results of optimization are presented and the stress field of loar-bearing wheel in optimal dimension obtained by using finite element analysis method is demonstrated. The fi-nite element analysis and optimization results show that the CPUE load-bearing wheel is feasible and suitable for the tracked vehicle and has a guiding value in practice of the weighting design of the whole tracked vehicle. 相似文献