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 spur gear is keyed to the engine shaft and rotates in anticlockwise direction. 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.
Belt transmission dynamometer 3. 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. In the transmission dynamometers, the energy is not wasted in friction but is used for doing work.
Epicyclic-train Dynamometer-torque and power transmitted ()
If you wish to download it, please recommend it to your friends in any social system. 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. Nirmal Kushwaha”— Presentation transcript: 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. 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.
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. The pinion revolves freely on a lever. Bhaumik patel Nilay patel. Due to this, the light does not reach to the eye piece as shown in Figure c. 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 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. Prony brake dynamometer 2. 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 dynamometsr the shaft bearing and is capable of slight circumferential adjustment.
My presentations Profile Feedback Log out. Absorption dynamometers, and 2. A weight w is placed at the smaller end of the lever in order to keep it in position.
Dynamometers PRESENTATION ON: Guided by: Prepared by: Nirmal Kushwaha
Nirmal Kushwaha Mechanical Deptt. The pinion or the intermediate gear meshes with both the spur and annular gears. Engineering College Palanpur Name: Rotational Dynamics In pure translational motion, all points on an object travel on parallel paths.
Share buttons are a little bit lower. Two stops S, S are provided to limit the motion of the lever. The most general motion is a combination of translation.
A belt dynamometer is introduced to measure directly the difference between the tensions of the belt, while it is running.
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.
In the absorption dynamometers, the entire energy or power produced by the engine is absorbed by the friction resistances of the brake and is transformed into heat, during the process of measurement. Published by Shanna Daniel Modified over 2 years ago. 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.
If the eye piece is now moved round by an amount equal to traiin 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 dynamometfr hence the eye piece receives flash of light. Registration Forgot your password? In order to balance it, a weight W is applied at a distance L from E on the frame as shown in Figure.
The tangential effort P teain 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. 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.
There is epicyckic pulley B called driven pulley mounted on another shaft to which the power from pulley A is transmitted.
Tran order to prevent the slipping of the rope over the flywheel, wooden blocks are placed at intervals around the circumference of the flywheel. To make this website work, we log user data and share it with processors.
hrain R And power transmitted. Auth with social network: A bright electric lamp L, behind the disc A, is fixed on the bearing of the shaft.