Description

The laboratory stand “Instantaneous axis of rotation” is intended for conducting educational and laboratory work for students in theoretical mechanics. The stand is made in the form of a desktop frame structure, consisting of a rectangular horizontal base and a vertical stand with a spindle unit attached to it. The first rotating body is fixed to the spindle assembly on the front side. On the rear side of the rack there is a first gear motor with a rotation frequency variable in direction and magnitude, driving the first body. A second gear motor with a fixed rotation speed is attached to the body, on the shaft of which a disk with markings is attached. At the base of the stand there should be a power source, a speed controller for the first geared motor and a switch for the direction of rotation of the first geared motor. Rotation speed sensors are installed on the rotating body and on the disk, the values ​​of which are displayed on digital displays with a resolution of 3. On the base there is a stand for placing a photo clamp. Information from the photo recorder is transferred to a laptop for subsequent analysis.
1 Stand supply voltage 220 V, alternating current, frequency 50 Hz. Maximum power consumption 250 W.
2 Disc diameter 200 mm.
3 Stand dimensions 400x400x500 mm
4 Weight no more than 15 kg.
The specified design of the stand with the equipment described above ensures that the following list of laboratory work is performed by a group of students of 2…4 people:
— determination of the instantaneous axis of rotation at angular velocities equal in magnitude and direction;
— determination of the instantaneous axis of rotation at angular velocities equal in magnitude and different in direction;
— determination of the instantaneous axis of rotation at angular velocities of different magnitude and direction