Vibro-impact dynamics of a periodically forced beam

被引：33
|
作者：
Knudsen, J [1 ]
Massih, AR
机构：
[1] Malmo Univ, SE-20506 Malmo, Sweden
[2] Lulea Univ Technol, SE-97187 Lulea, Sweden
[3] ABB Atom AB, SE-72163 Vasteras, Sweden
来源：
JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME | 2000年 / 122卷 / 02期
关键词：
D O I：
10.1115/1.556175
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The vibration and impact dynamics of a periodically forced loosely supported beam are analyzed. The ear work rates at impact points are evaluated. The considered beam is clamped at one end, and constrained against unilateral contact at contact sites, with or without friction, near the other end. In this work, the structure is modeled by a Bernoulli-type beam supported by springs using finite element method. Our model calculations are compared with measurements of contact forces and displacements made on a loosely supported rod that was subjected to harmonic loading. Furthermore, the dynamics of vibro-impacts are characterized by evaluating the impact velocity as a function of harmonic excitation frequency for two idealizations of the aforementioned structure. [S0094-9930(00)01002-7].
引用
收藏
页码：210 / 221
页数：12
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