海量資源,盡在掌握
 1.材料的滾動摩擦因數(shù)(表1-8)表1-8材料的滾動摩擦因數(shù)相互接觸的物體μ相互接觸的物體μ鑄鐵與鑄鐵鋼質(zhì)車輪與鋼軌木材與鋼木材與木材軟鋼和鋼0.0050.050.03~0.040.05~0.080.05料車與鋼軌(有滾珠軸承)料車與鋼軌(無滾珠軸承)鋼質(zhì)車輪與 (共 1389 字) [閱讀本文] >>