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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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The pinion revolves freely on a lever. To make this website work, we log user data and share it with processors. Absorption dynamometers, and 2.

Nirmal Kushwaha Mechanical Deptt. 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. In the absorption dynamometers, the entire energy or power dgnamometer by the engine is absorbed by the friction resistances of the brake and is transformed into heat, during the process of measurement.

Bhaumik patel Nilay patel. My presentations Profile Feedback Log out. It consists of a pulley A called driving pulley which is rigidly dynaamometer tothe shaft of an engine whose power is required to be measured.

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

There is another pulley B called driven pulley mounted on another shaft to which the power from pulley A is transmitted. Since the tension traun 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. Feedback Privacy Policy Feedback. Two stops S, S are provided to limit the motion of the lever.

Auth with social network: 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. Nirmal Kushwaha”— Presentation transcript: Share buttons are a little bit lower.


It is thus obvious that the frame causes movement about E in the anticlockwise direction.

Epicyclic-train Dynamometer-torque and power transmitted ()

In order to balance it, a weight W is applied at a distance L from E on the frame as shown in Figure. A bright electric lamp L, behind the disc A, is fixed on the bearing of the shaft.

Dynxmometer use this website, you must agree to our Privacy Policyincluding dynanometer policy. 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. A counter weight is placed at the other end of the lever which balances the brake when unloaded. Rotational Dynamics In pure translational motion, all points on an object travel on parallel paths. A weight w is placed at the smaller end of the lever in order to keep it dnamometer position.

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. 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.

The pinion or the intermediate gear meshes with both the spur and annular gears. We think you have liked this presentation.

The upper block has a long lever attached to it and carries a weight W at its outer end. The most general motion is a combination of translation. 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 epicclic same line when no power is transmitted and there is no torque on the shaft.


The annular gear is also keyed to the driving shaft and rotates in clockwise direction. 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. In dyna,ometer to dynamomeer the slipping of the rope over the flywheel, wooden blocks are placed at intervals around the circumference of the flywheel.

About project SlidePlayer Terms of Service. Prony brake dynamometer 2.

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

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 epicycloc of the shaft.

The energy or power produced by the engine is transmitted through the dynamometer to some other machines where the power developed is suitably measured. The frame is pivoted at E and its movement is controlled by two stops S,S. Belt transmission dynamometer 3.

Due to this, the light does not reach to the eye piece as shown in Figure c. Registration Forgot your password?

If you wish to download it, please recommend it to your friends in any social system. Published by Shanna Daniel Modified over 2 years ago. The tangential traun P exerted by the spur gear on the pinion and the tangential reaction of the annular gear on the pinion are equal.