排序方式: 共有106条查询结果,搜索用时 0 毫秒
101.
102.
根据对国内外载货汽车用散热器现状进行的分析,指出要提高散热器产品在国内外市场的竞争力,就必须实现散热器的高效化和轻量化,对解放,东风和湘江牌载货汽车用散热器的进行改进设计,并与原结构热散进行了对比试验,试验结果认为,改进效果良好。 相似文献
103.
104.
105.
S. -B. Li X. -Q. Guan T. -L. Lu J. -W. Zhang 《International Journal of Automotive Technology》2008,9(4):483-491
An 8 degree-of-freedom (DOF) vehicle model is established to investigate the vertical vibration characteristics of an exhaust
system excited by road surface inputs. The simplification of an exhaust system relevant to the vehicle model is discussed
in detail, including the steps of exhaust modal analysis, definition of mass element, exhaust partitioning, parameter acquisition,
and simplified exhaust validation. The vehicle model is developed based on a half-vehicle model, simulated using MATLAB/SIMULINK,
and validated by comparing the simulation and experiment on various road profiles. Results show that the vehicle model effectively
represents the dynamics of the vehicle characteristic in vertical vibration. 相似文献
106.
文章基于力学原理,对沥青混合料永久变形的各种试验方法的优缺点进行了比较,得出三轴重复荷载蠕变试验是评估沥青混合料永久变形的首选方案,其不仅能模拟道路的实际受力状态,而且能准确的进行车辙的计算和预估,值得推广应用。 相似文献