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Tatsuro Muro – One of the best experts on this subject based on the ideXlab platform.
Optimum track Belt Tension and height of application forces of a bulldozer running on weak terrainJournal of Terramechanics, 2003Co-Authors: Tatsuro MuroAbstract:
Abstract The productivity of a flexible tracked bulldozer running on weak terrain varies remarkably with the flexibility of the track Belt and the height of application of effective drawbar pull or pushing force. The land locomotion resistance due to the sinkage of the rear sprocket of the bulldozer severely affects the tractive performance. Here, several relations between the track Belt Tension, the height of application forces, the driving force and the effective drawbar pull or pushing force, the amount of sinkages of the front idler and rear sprocket, the tractive power efficiency, and the slip ratio have been analysed for the given vehicle dimensions of a 150 kN weight bulldozer running on a silty loam terrain by means of a rigorous simulation programme. As a result, it is revealed that the effective drawbar pull and the tractive power efficiency increase remarkably with the increase of track Tension. Also, to obtain the maximum efficiency, the optimum height of application of effective optimum drawbar pull and pushing force is about 0, −40 and −80 cm, and the eccentricity of the vehicle center of gravity is −0.05, 0.00 and 0.05, respectively.
TRAFFICABILITY CONTROL SYSTEM FOR A TRACTOR TRAVELING UP AND DOWN A WEAK SLOPE TERRAIN USING INITIAL TRACK Belt TensionSoils and Foundations, 1995Co-Authors: Tatsuro MuroAbstract:
The purpose of this paper is to establish a trafficability control system for a flexible tracked tractor traveling up and down a weak slope using an initial track Belt Tension sensor. The distribution of track Belt Tension and contact pressure depends on the initial track Belt Tension. In this paper, some analytical results are presented for a 50 kN weight tractor towing up (or down) other construction machinery on a decomposed weathered granite slope. The driving (or braking) efficiency of power decreases (or increases) remarkably with decrease in the initial track Belt Tension. The amount of depression of the rear sprocket increases vice versa with initial track Belt Tension, while the eccentricity of the resultant normal force remains almost constant. As a result, it has been confirmed that the lower limit of the initial track Belt Tension can be determined to be 2∼3 kN at the driving action and almost zero at the braking action, for the given vehicle and the given sloped terrain. This automation of the trafficability control system will produce a high power efficiency for a flexible tracked tractor towing up and down a weak slope.
Djuraev A. – One of the best experts on this subject based on the ideXlab platform.
DETERMINATION OF THE REGULARITY CHANGE Belt Tension IN THE SLACK SIDE OF Belt TRANSMISSION WITH VARIABLE PARAMETERS2030 Uzbekistan Research Online, 2019Co-Authors: Mamatova D.a., Djuraev A.Abstract:
The article analyzes patterns of regularity change Tension in the slack side Belt transmission with variable gear ratio analytical method. A system of differential equations describing the motion of the Belt drive pulleys are obtained. On the basis of numerical solution task of regularity change Tension in the slack side Belt transmission are received. A graph of changes in the maximum voltage in the slack side from the preliminary transmission Belt Tension values are constructed. The parameters of Belt transmission are justified
ANALYSIS OF CHANGES IN THE Tension Belt THE RETURN RUN SIDE OF Belt TRANSMISSION2030 Uzbekistan Research Online, 2019Co-Authors: Mamatova D.a., Djuraev A.Abstract:
The article analyzes patterns of regularity of changing Tension in the slack side Belt transmission with variable gear ratio analytical method. A system of differential equations describing the motion of the Belt drive pulleys. On the basis of numerical solution task of regularity change Tension in the slack side Belt transmission. A graph of changes in the maximum Tension in the slack side from the preliminary transmission Belt Tension valueswere constructed. It defines the parameters of Belt transmission
Cheng-kuo Sung – One of the best experts on this subject based on the ideXlab platform.
Effects of Belt Flexural Rigidity on the Transmission Error of a Carriage-driving SystemJournal of Mechanical Design, 2000Co-Authors: Hung-ming Tai, Cheng-kuo SungAbstract:
This paper investigates the effects of Belt flexural rigidity and Belt Tension on transmission error of a carriage-driving system. The beam model associated with both the clamped and moving boundary conditions at two ends is utilized to derive the governing equation of the Belt. The Belt flexural rigidity is obtained and verified by an experimental technique. In addition, a numerical method is proposed to determine the Belt profile, transmission error and transmission stiffness. Results show that transmission error of a carriage-driving system increases when the carriage moves away from the driving pulley due to finite Belt flexural rigidity. According to the analyses, application of appropriate Tension on the Belt can significantly reduce the error. Furthermore, the transmission stiffness for representing the entire rigidity between the carriage and pulley is investigated based on the proposed beam model, A three-dimensional plot that indicates the relationship among the transmission stiffness, Belt Tension and the position of the carriage is obtained.
An experimental study on transmission efficiency of a rubber V-Belt CVTMechanism and Machine Theory, 1998Co-Authors: T.f. Chen, Cheng-kuo SungAbstract:
This paper presents an experimental investigation on the speed and torque loss components of the power loss of a rubber V-Belt continuously variable transmission (CVT) as operating conditions (parameters) change. These conditions include the speed ratio, Belt Tension, rotational speed, external load, diameters of the pulley, etc. A dynamometer is constructed to measure the speeds and torques of the driving and driven pulleys so as to identify the losses and efficiency of the experimental CVT. The power loss of the CVT is investigated not only at constant running speeds but during acceleration when the speed ratio changed continuously. An uncertainty analysis is then performed for the estimation of the accuracy of experimental data. In addition, the repeatability of the experiment was studied to guarantee that reliable results were obtained. Experimental results demonstrated that the power loss as well as transmission efficiency of the CVT differed from those of the V-Belt drives.