Point Mass Downfall, Center of Mass, Mass Inertia

목차

Ⅰ. Introduction
1. Purpose of the Test
2. The Overview of the Test
2.1. Point Mass Downfall
2.2. Center of Mass
2.3. Mass Moment of Inertia

Ⅱ. Experimental Method
1. Point Mass Downfall
1.1. Basic Theory
1.2. Data Analysis
2. Center of Mass
3. Moment of Inertia

Ⅲ. Result
1. Point Mass Downfall
2. The Center of Mass
3. Moment of Inertia
3.1. Specification of Apparatus
3.2. Moment of Inertia of Pure Disk
3.3. Moment of Inertia of Objects

Ⅳ. Discussion
1. Point Mass Downfall
1.1. Skipped Element of Energy Equation
1.2. Another Causes of Error
2. The Center of Mass
3. Moment of Inertia
3.1. The Theorem of Parallel Axis of Moment of Inertia
3.2. The Theoretical Error

Ⅴ. Conclusion

Ⅵ. Reference

Ⅶ. Appendix

본문내용

Ⅰ. Introduction
1. The Purpose of the Test
- The object falling on the curvature is off-bending in a moment and goes the free-fall. In theory, calculate the falling point of object and review the results as compared to the measuring values. (Point Mass Downfall)

- Objects actually appear complex shapes, the calculation of the center of mass and the moment of inertia is difficult and make much difference compared to theoretical results. Here, it is the importance of experimental. (The Center of Mass)

- From the definition of the moment of inertia, the form of a simple formula such as a bar, a plate, a square, and a sphere can be calculated by the numerical formula. As the complex shape such as a car engine, it is not easy to obtain the moment of inertia by using above equation. However, using the law of torsion pendulum, it is easy to obtain experimentally. (Mass Moment of Inertia)

2. The Overview of the Test
2.1. Point Mass Downfall
(1) Place the ball randomly at section A. And the ball will roll down along the floor, then finally stop at the section D through section B and C and off-bending position.

참고자료

· Hyungpil Moon, 2015, "Laboratory Manual for Experiments and Design on Vibration and Dynamic Systems", Sungkyunkwan University Mechanical Engineering Department
· http://physics.snu.ac.kr/~demo/subject/inclined.htm [accessed on 2017.11.03]
· https://ko.wikipedia.org/wiki/%ED%8F%89%ED%96%89%EC%B6%95_%EC%A0%95%EB%A6%AC [accessed on 2017.11.03.]