文章基本信息

标题：Damped periodic motions used in the study of the drag coefficient
本地全文：下载
作者：Stelian Alaci ; Stelian Alaci ; Constantin Filote 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2017
卷号：112
页码：1-6
DOI：10.1051/matecconf/201711207003
语种：English
出版社：EDP Sciences
摘要：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.