トラクタのけん引性能因子としての土壌のすべり係数
算出法に関する一考察
1966 年 28 巻 2 号 p. 78-81
詳細
1966 年 28 巻 2 号 p. 78-81
Two methods to calculate slip coefficient which are more accurate and simpler than Janossi's and Reece's were found.
(1) The 0.63 times method: The j value when τ is 0.63 times τmax on τ—j curve corresponds to K value by Janossi's tangential method.
(2) The maximum method: If j0, the j value when the shearing strength becomes maximum value, is kown, K is given by the following equation.
K=j0/4.6
(3) The 0.63 times method is suitable to predict the tractor performance in usual field work, and maximum method is suitable to know the maximum tractive force of tractor on the soil.
