Project 1:A Pully drive system used in washing machine is designed based on flat belt as in Figure.1/a. The tension in thepully is 115 N when it is stationary. The flat and V-belt type as well as the geometry specifications (Diametersand lap angle) are shown in Figure.2. The speed of rotation N is 1400 rpm and the coefficients of friction isu = 0.25Flat BeltV-Belt(b)Figure.1: Flat vs V-belt pully drive section(а)lap angle= 480 mmD= 160D,=240 mmFigure.2: Pully drive system specificationsHTPage 5 of 10الحسين التقنيةAl Hussein Technical1. Find the initial tension in each side2. Find the power transmitted on the smaller wheel3. Discuss the initial tension requirements/calculations to convert the system to the operation of a V-beltdrive, if the included angle of V-section B = 15° (assume same u ), in your discussion compare thecritical tension ration for both type and the transmitted power values.

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Project 1: A Pully drive system used in washing machine is designed based on flat belt as in Figure.1/a. The tension in the pully is 115 N when it is stationary. The flat and V-belt type as well as the geometry specifications (Diameters and lap angle) are shown in Figure.2. The speed of rotation N is 1400 rpm and the coefficients of friction is u = 0.25 Flat Belt V-Belt (а) (b) Figure.1: Flat vs V-belt pully drive section lap angle - 480 mm 0= 160 %3D D,-240 mm Figure.2: Pully drive system specifications HT Page 5 of 10 الحسين التقنية Al Hussein Technical 1. Find the initial tension in each side 2. Find the power transmitted on the smaller wheel 3. Discuss the initial tension requirements/calculations to convert the system to the operation of a V-belt drive, if the included angle of V-section B = 15° (assume same u ), in your discussion compare the critical tension ration for both type and the transmitted power values.

Project 1: A Pully drive system used in washing machine is designed based on flat belt as in Figure.1/a. The tension in the pully is 115 N when it is stationary. The flat and V-belt type as well as the geometry specifications (Diameters and lap angle) are shown in Figure.2. The speed of rotation N is 1400 rpm and the coefficients of friction is u = 0.25 Flat Belt V-Belt (а) (b) Figure.1: Flat vs V-belt pully drive section lap angle - 480 mm 0= 160 %3D D,-240 mm Figure.2: Pully drive system specifications HT Page 5 of 10 الحسين التقنية Al Hussein Technical 1. Find the initial tension in each side 2. Find the power transmitted on the smaller wheel 3. Discuss the initial tension requirements/calculations to convert the system to the operation of a V-belt drive, if the included angle of V-section B = 15° (assume same u ), in your discussion compare the critical tension ration for both type and the transmitted power values.

Elements Of Electromagnetics

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ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

Project 1:
A Pully drive system used in washing machine is designed based on flat belt as in Figure.1/a. The tension in the
pully is 115 N when it is stationary. The flat and V-belt type as well as the geometry specifications (Diameters
and lap angle) are shown in Figure.2. The speed of rotation N is 1400 rpm and the coefficients of friction is
u = 0.25
Flat Belt
V-Belt
(b)
Figure.1: Flat vs V-belt pully drive section
(а)
lap angle
= 480 mm
D
= 160
D,=240 mm
Figure.2: Pully drive system specifications
HT
Page 5 of 10
الحسين التقنية
Al Hussein Technical
1. Find the initial tension in each side
2. Find the power transmitted on the smaller wheel
3. Discuss the initial tension requirements/calculations to convert the system to the operation of a V-belt
drive, if the included angle of V-section B = 15° (assume same u ), in your discussion compare the
critical tension ration for both type and the transmitted power values.

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