Experimental and numerical study of heat transfer through a synchronous belt transmission type AT10
Highlights • An experimental study on pulley-belt temperature measurement is presented.• The effects of torque, setting tension and angular speed on the belt.• A heat transfer model is proposed to calculate pulley-belt heat flux.• Validation based on experimental thermal surveys and thermocouple measures.• A comparative analysis between two heat fluxes (calculated and simulated) is done.
Introduction of damping into the flexible multibody belt-drive model: A numerical and experimental investigation
Abstract In this paper the belt-drive model using an absolute nodal coordinate formulation is presented. Using this approach the damping forces are usually neglected and only the elastic forces are taken into account. The aim of this paper is to introduce a damping mechanism into the belt-drive model and to verify it against experimental data. Different damping mechanisms are proposed for the damping of the longitudinal and bending deformations and several experiments were conducted in order to obtain the damping properties. Good agreement between the numerical result and the experimentally obtained data was found. Finally, the applicability of the belt-drive model was presented in a comparison with the pinned–pinned beam model.
An experimental study on transmission efficiency of a rubber V-belt CVT
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.