Table, Create, Delete, Add, Rows, Column, Delete, Row, Column, Add, Simple, XY, Pie, Chart. Data, Import, Export. Table, Create, Delete, Add, Rows, Column. FIGURE Epicyclic train dynamometer. direction. The power is transmitted from gear B to D through the intermediate gear C which revolves freely on a pin. This type of dynamometer can be classified as follows: 1. Epicyclic train dynamometer 2. Belt transmission dynamometer 3. Torsion dynamometer. EpicydiC train.

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A weight w is placed at the smaller end of the lever in order to keep it in position. Absorption dynamometers, and 2. Since the tension in the tight side of the belt T1 is greater than the tension in the slack side of the belt T2 ,so the total force acting on the pulley C i.

It consists of one, two or more ropes wound around the flywheel or rim of a pulley fixed rigidly to the shaft of an engine. The pinion revolves freely on a lever.

About project SlidePlayer Terms of Service. A bright electric lamp L, behind the disc A, is fixed on the bearing of the shaft. If you wish to download it, please recommend it to your friends in any social system. Due to this, the light does not reach to the eye piece as shown in Figure c. There is another pulley B called driven pulley mounted on another shaft to which the power from pulley A is transmitted. For a solid shaft of diameter D, the polar moment of inertia for a hollow shaft of external diameter D and internal diameter d, the polar moment of inertia, From the above torsion equation the power transmitted.

Published by Shanna Daniel Modified over 2 years ago. The amount of twist depends upon many factors such as torque acting on the shaft T length of the shaft l diameter of the shaft D modulus of rigidity C of the material of the shaft. The frame is pivoted at E and its movement is controlled by two stops S,S. Bhaumik patel Nilay patel. To make this website work, we log user data and share it with processors. It consists of two discs A and B fixed on a shaft at a convenient distance apart Each disc has a small radial slot and these two slots are in the same line when no power is transmitted and there is no torque on the shaft.


Auth with social network: Nirmal Kushwaha”— Presentation transcript: The pulleys A and B are connected by means of a continuous belt passing round the two loose pulleys C and D which are mounted on a T-shaped frame. A counter weight is placed at the other end of the lever which balances the brake when unloaded.

Dynamometers PRESENTATION ON: Guided by: Prepared by: Nirmal Kushwaha

Engineering College Palanpur Name: My presentations Profile Feedback Log out. The upper end of the ropes is attached to a spring balance while the lower end of the ropes is kept in position by applying a dead weight as shown in Figure. Registration Forgot your password? A little consideration will show that when the power is being transmitted, then the driving end of the shaft twists through a small angle relative to the driven end of the shaft. Belt transmission dynamometer 3.

The tangential effort P exerted by the spur gear on the pinion and the tangential reaction of the annular gear on the pinion are equal. The annular gear is also keyed to the driving shaft and rotates in clockwise direction.

In order to prevent the slipping of the rope over the flywheel, wooden blocks are placed at intervals around the circumference of the flywheel. It consists of a pulley A called driving pulley which is rigidly fixed tothe shaft of an engine whose power is required to be measured. To use this website, you must agree to our Privacy Policyincluding cookie policy.


The upper block has a long lever attached to it and carries a weight W at its outer end. Rotational Dynamics In pure translational motion, all points on an object travel on parallel paths.

In order to balance it, a weight W is applied at a distance L from E on the frame as shown in Figure. V-belt drive V-belt is mostly used in factories and workshops where a great amount of power is to be transmitted from one pulley to another when the two.

Dynamometers PRESENTATION ON: Guided by: Prepared by: Nirmal Kushwaha – ppt video online download

A helical spring is provided between the nut and the upper block traiin adjust the pressure on the pulley to control its speed. Prony brake dynamometer 2. The pinion or the intermediate gear meshes with both the spur and annular gears.

R And power hrain. Two stops S, S are provided to limit the motion of the lever. The most general motion is a combination of translation.

It is thus obvious that the frame causes movement about E in the anticlockwise direction. Nirmal Kushwaha Mechanical Deptt. We think you dynamoketer liked this presentation.

At every revolution of the shaft, a flash of light is projected through the slot in the disc A An eye piece E is fitted behind the disc B on the shaft bearing and is capable of slight circumferential adjustment.