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Developing to Software Tool for Designing Flexible Power Transmitting Element - Fiat Belt

M. Rostom Ali
Dept. of Farm Power and Mechinery, Bangladesh Agricultural University, Mymensingh

M. Enamul Haque
Dept. of Computer Science and Methematics, Bangladesh Agricultural University, Mymensingh

Abstract/ Executive Summary:

In this paper, the desing of flat belt has been described and necessary computer programme have been developed in Bangladesh Agricultural University, Mymensingh. The method of determining basic design parameters for flat belt design are belt thickness, width, pulley diameter, initial tension, stress, ratio of tight and slacks side forces, coefficient of friction has been presented by a flow chart and a software tool has been developed by using Visual Basic language. The main objective of developing this software tool is that computer generated outputs have better accuracy than conventional calculation procedure.

Keywords: American Leather Belting Association, Open Belt, Crossed Belt

Location: Bangladesh Agricultural University, Mymensingh

Start Date:

End Date:

Program Area: Farm Mechanization

Non-commodity: Resource inventory

Objectives:

To develop a software tool for design and selection of flat belt drivers, suitable to specific requirements.

Methodology:

Belt Material

The most generally used malarial for belting is Oak-tanned leather, the best grade being taken from that part of the hide lying within 457 mm of the backbon of the of animal. When a heavier belt is desired than can be obtained from a single thickness of the hide, two or even three thicknesses are placed one on top of the other and cemented together. These built-up belts are known as double-ply and triple-ply belts respectively.

Selection of the belts

Flat belts are usually employed as an economical substitute for some other means of power transmission. When a flat belt fails, it may break or tear or the joint may fail. This places the driven machine out of production, and the down time may be more expensive than the belt. For this reason,unless the machine is used only occasionally. it is considered good practice to design concretive. Belt probabily often fails by fatigue. The fatigue failure a flexible material should not, however, be compared with that of metals. A belt will eventually fail in fatigue when a combination of following causcs is present.

A high belt tension caused by overloads or improper pulley center selection
Excessive slippage
An accumulation of the weaking effect of momentary overloads due to vibration, shocks, and beIt slapping
Adverse environment condition

Source of Information: Journal of Bangladesh Agricultural University, Vol. 02, Number 1, June 2004

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The software tools for the design of flexible power transmitting element-Flat belt is effective and efficient as a new concept, which is very easy to visualize and much more convenient for power transmission. There are a number of operating variables that affect the efficiency of this drives and their efficiency will also very because of large differences in the amount of power transmitted. Developing software tool for the design of flat belt requires some "Experience factors" which assist to minimize the variation of efficiency.

Knowledge Management: Journal