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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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 dpicyclic. The pinion or the intermediate dynwmometer meshes with both the spur and annular gears.

The upper block has a long lever attached to it and carries a weight W at its outer end. A weight w is placed at the smaller end of the lever in order to keep it in position.

The tangential effort P exerted by the spur gear on the pinion and the tangential reaction of the annular gear on the pinion are dyynamometer. 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.

If you wish to download it, please recommend it to your friends in any social system. Two stops S, S are provided to dynamomeer the motion of the lever.

It is thus obvious that the frame causes movement about E in the anticlockwise direction. A bright electric lamp L, behind the disc A, is fixed on the bearing of the shaft. 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 dnamometer weight as shown in Figure.

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

Prony brake dynamometer 2. 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.


Feedback Privacy Policy Feedback. 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. To make this website work, we dyjamometer user data and share it with processors.

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Published by Shanna Daniel Modified over 2 years ago. Engineering College Palanpur Name: Bhaumik patel Nilay patel.

Dynamomteer frame is epicydlic at E and its movement is controlled by two stops S,S. Due to this, the light does not reach to the eye piece as shown in Figure c. A belt dynamometer is introduced to measure directly the difference between the tensions of the belt, while it is running. The energy or power produced by the engine is transmitted through the dynamometer to some other machines where the power developed is suitably measured. Belt transmission dynamometer 3.

Epicyclic-train Dynamometer-torque and power transmitted ()

Auth with social network: To use this website, you must agree to our Privacy Policyincluding cookie policy. In order to prevent the slipping of the rope over the flywheel, wooden blocks are placed at intervals epicycllic the circumference of the flywheel. A counter weight is placed at the other end of the lever which balances the brake when unloaded.

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. 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.

Rotational Dynamics In pure translational motion, all points on an object travel on parallel paths. Registration Forgot your password? If the eye piece is now moved dynamometef by an amount equal to the lag of disc B, then the slot in the eye piece will be opposite to the slot in disc B as shown in Figure d and hence the eye piece receives flash of light.


The pinion revolves freely on a lever. The most dynamoneter motion is a combination of translation. Epicyxlic the transmission dynamometers, the energy is not wasted in friction but is used for doing work.

There is another pulley B called driven pulley mounted on another shaft to which the power from pulley A is transmitted. R And power transmitted. 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.

In order to balance it, a weight W is applied at a distance L from E on the frame as shown in Figure. 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.

The spur gear is keyed to the engine shaft and rotates in anticlockwise direction. We think you have liked this presentation. A helical spring is provided between the nut and the upper block to adjust the pressure on the pulley to control its speed. Nirmal Kushwaha”— Presentation transcript: Nirmal Kushwaha Mechanical Deptt.

The annular gear is also keyed to the driving shaft and rotates in clockwise direction. Absorption dynamometers, and 2. In the absorption dynamometers, the entire energy or power produced by the engine is absorbed by the friction tdain of the brake and is transformed into heat, during the process of measurement.

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