Academic Journal of Engineering and Technology Science, 2022, 5(12); doi: 10.25236/AJETS.2022.051203.

The Measurement of Moment of Inertia by Using Three Wire Pendulum

Author(s)

Ning Feng

Corresponding Author:
Ning Feng
Affiliation(s)

Sino-British College, University of Shanghai for Science and Technology, Shanghai, China

Abstract

Moment of inertia is a physical quantity of great significance for the rotation of objects. This formal laboratory report studies the use of three-wire pendulum to measure the moment of inertia of an object. The main principle is to use the period of the torsional pendulum motion of the object to approximate the moment of inertia by the conservation of mechanical energy. The experiment verifies the feasibility of measuring the moment of inertia by using a three-wire pendulum within the error range. At the same time, the parallel axis theorem is proved experimentally.

Keywords

Moment of Inertia, Three Wire Pendulum, Swing Period, Parallel Axis Theorem

Cite This Paper

Ning Feng. The Measurement of Moment of Inertia by Using Three Wire Pendulum. Academic Journal of Engineering and Technology Science (2022) Vol. 5, Issue 12: 18-25. https://doi.org/10.25236/AJETS.2022.051203.

References

[1] Sharma, D. P. (2010) Engineering mechanics. In chapter 6: Centroid and Moment of Inertia [online] (1st edition), Place of publication not identified Pearson, ISBN 93-325-0348-6.

[2] Wu Xiao (2011) Calculation principle in measuring trilinear pendulum's moment of inertia. Journal of vibration and shock, v. 30 (9), pp. 156, pp. 201

[3] Shi Dali, Liu Chunhui and Wu Yanyang (2016) The Experimental Principle of Measuring the Moment of Inertia of the Fixed Axis of the Three Wire Pendulum. Equipment Manufacturing Technology, No. 04, pp. 13-17

[4] Qin Yanfen (2016) Systematic Error Analysis in Measurement Experiment of Rotational Inertia of Rigid Body with Three-wire Pendulum. Journal of NingBo University of Technology, v. 28 (2), pp. 5-8

[5] Jun Peng and Li Zhang (2016) An improved method in the measurement of the moment of inertia. AIP Conference Proceedings 1740, 090002