| Issue |
MATEC Web Conf.
Volume 112, 2017
21st Innovative Manufacturing Engineering & Energy International Conference – IManE&E 2017
|
|
|---|---|---|
| Article Number | 07003 | |
| Number of page(s) | 6 | |
| Section | Mechanical and Manufacturing Equipment, Devices and Instrumentation, Design and Analysis | |
| DOI | https://doi.org/10.1051/matecconf/201711207003 | |
| Published online | 03 July 2017 | |
Damped periodic motions used in the study of the drag coefficient
1 Stefan cel Mare University, Department of Mechanics and Technologies, 13 University Street, Suceava, Romania
2 Stefan cel Mare University, Computers, Electronics and Automation Department, 13 University Street, Suceava, Romania
3 Integrated Center for Research, Development and Innovation in Advanced Materials, Nanotechnologies, and Distributed Systems for Fabrication and Control (MANSiD), 13 University Street, Suceava, Romania
4 Aalborg University, Design of Mechanical System, Fredrik Bajers Vej 5, 9220 Aalborg, Denmark
* Corresponding author: alaci@fim.usv.ro
The paper proposes a method and the related experimental setup for finding the drag coefficient for a body. The device consists in a pendulum materialized by a hinged rod initially in horizontal position. A spherical body immersed in a liquid is attached to the free end of the rod. The restoring force is created by a helical spring. The inertial characteristics of the pendulum can be changed using an additional mass. The differential equation characteristic to the motion of the pendulum is deduced and subsequently integrated numerically. The coincidence between experimental and theoretical data allow for viscosity evaluation.
© The Authors, published by EDP Sciences, 2017
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