Studies on the Transportation and Materials Handling Means in Agricultural Affairs (III)

Abstract

On the basis of the previous report in which the static force of a hydraulic locomotive was analized, this paper presents the results of the driving experiment for the hydraulic locomotive. The characteristics of the apparatus as well as the experimental results can be summarized as follows;
1. As a motion equation for the carrier, the following was obtained.
v_c=v_Max/Kv_Max-v_Max(1-e^kt)+Ke^kt
where, V indicates the carrier velocity at the time t, and V_max the maximam speed of the carrier which is obtained from the air velocity in the elastic pipe. The constant K can be expressed as a function of the carrier weight W, rolling resistance R, and horizontal force F_x as follows:
K=2√WRF_x/Wv_a
2. As shown in Fig. 4 and 5, the experimental values of the carrier were almost coincident with the theoretical values.
The difference can be considered as measurement error.
3. The location of the driving wheel did not affect the driving character of the carrier (See Fig. 6).
4. Openning and closing of the exhaust valve affected the driving characteristics of the carrier, and in the case of wide clearance between the both driving wheels, great influence was observed.