JUDGMENT ON THE INFLUENCE OF THE CYLINDER ARM LENGTH AND STEERING WHEEL ANGLES ON THE MODIFIED TRACTOR HYDRAULICALLY
Ismail, Z., El-Sebaee, I. (2014). JUDGMENT ON THE INFLUENCE OF THE CYLINDER ARM LENGTH AND STEERING WHEEL ANGLES ON THE MODIFIED TRACTOR HYDRAULICALLY. EKB Journal Management System, 31(2), 455-466. doi: 10.21608/mjae.2014.99585
Z. E. Ismail; I. El-Sebaee. "JUDGMENT ON THE INFLUENCE OF THE CYLINDER ARM LENGTH AND STEERING WHEEL ANGLES ON THE MODIFIED TRACTOR HYDRAULICALLY". EKB Journal Management System, 31, 2, 2014, 455-466. doi: 10.21608/mjae.2014.99585
Ismail, Z., El-Sebaee, I. (2014). 'JUDGMENT ON THE INFLUENCE OF THE CYLINDER ARM LENGTH AND STEERING WHEEL ANGLES ON THE MODIFIED TRACTOR HYDRAULICALLY', EKB Journal Management System, 31(2), pp. 455-466. doi: 10.21608/mjae.2014.99585
Ismail, Z., El-Sebaee, I. JUDGMENT ON THE INFLUENCE OF THE CYLINDER ARM LENGTH AND STEERING WHEEL ANGLES ON THE MODIFIED TRACTOR HYDRAULICALLY. EKB Journal Management System, 2014; 31(2): 455-466. doi: 10.21608/mjae.2014.99585

JUDGMENT ON THE INFLUENCE OF THE CYLINDER ARM LENGTH AND STEERING WHEEL ANGLES ON THE MODIFIED TRACTOR HYDRAULICALLY

Misr Journal of Agricultural Engineering
Article 7, Volume 31, Issue 2, April 2014, Page 455-466  XML PDF (1022.93 K)
Document Type: Original Article
DOI: 10.21608/mjae.2014.99585
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Authors
Z. E. Ismail1; I. El-Sebaee2
1Prof. of Power Technology and Farm Machinery of Agric., Mansoura Univ., Egypt.
2Ass. Res. in Agric. Eng. Res. Inst. (AEnRI), Giza, Egypt.
Abstract
The aim of this investigation was to choose and develop the local hydraulic steering system. The components of modified system were the pump, steering unit, steering shaft, cylinder, double-shear clevis ends for the cylinder and rod ends. To evaluate the hydraulic steering system, the field experiment factors were three tractor forward speeds (4.0; 5.5 and 7.0 km/h) and four distance between the front wheel (77.5; 94.0; 109.5 and 125.5 cm) that realized four “l/b” ratios were identified to measure the steering angles, cylinder length and steering wheel parameters and its affecting field efficiency, turning time and tractor fuel consumption. A response surface methodology (RSM) is used to collect of mathematical and statistical techniques for empirical model building for steering of hydraulic tractor. Increasing the cylinder length (Lef) directly increases each of actual and theoretical outer steering angles (θth˚) at different ratio of (l/b) and vice versa at increasing the (l/b) ratio. The same relation was found for response of steering wheel. Practically, in the case of stability the average of turning radius for the hydraulic steering system was permanent as 2.5m against 3.0m for mechanical steering. The hydraulic steering system reduces the tractor turning radius, total fuel consumption, the time losses in the turning, and increasing the field efficiency.
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