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第七讲基本性能和设计参数的计算(续)4 运输性能计算土壤稳定机械的运输工况,通常为运距小于100km 的情况下,机器靠自身行驶.4.1 动力特性运输工况下的牵引平衡方程为:F_k=F_f+F_i+F_w+F_j或:F_k=G fcosα+Gsinα+1/2K_wAρV~2+xG/g (dv)/(dt) (1)式中:F_k-驱动轮的切线牵引力,N;F_i-坡道阻力,N;F_w-空气阻力,N;F_j-加速阻力,N;G-机重,N;f-滚动阻力系数,N;
Lecture 7 Basic Calculation of Performance and Design Parameters (cont’d) 4 Transportation Performance Calculation Soil stable machine condition is usually driven by the machine when the distance is less than 100km. 4.1 Traction balance under dynamic characteristics The equation is: F_k = F_f + F_i + F_w + F_j Or: F_k = G fcosα + Gsinα + 1 / 2K_wAρV 2 + xG / g dv / dt Where: , N; F_i- ramp resistance, N; F_w- air resistance, N; F_j- acceleration resistance, N; G- machine weight, N; f- rolling resistance coefficient, N;