Vibro-Impact Dynamics of a Periodically Forced Beam-Reference-Cited by-同舟云学术

Vibro-Impact Dynamics of a Periodically Forced Beam

Published:2000-01-27 Issue:2 Volume:122 Page:210-221
ISSN:0094-9930
Container-title:Journal of Pressure Vessel Technology
language:en
Short-container-title:

Author:

Knudsen Jakob¹,Massih Ali R.²³

Affiliation:

1. Malmo¨ University, SE 205 06 Malmo¨, Sweden

2. Lulea˚ University of Technology, SE 971 87 Lulea˚, Sweden

3. ABB Atom AB, SE 721 63 Va¨stera˚s, Sweden

Abstract

The vibration and impact dynamics of a periodically forced loosely supported beam are analyzed. The wear 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]

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality

Link

http://asmedigitalcollection.asme.org/pressurevesseltech/article-pdf/122/2/210/5751533/210_1.pdf

Reference19 articles.

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3. Axisa, F., Antunes, I., and Villard, B., 1988, “Overview of Numerical Methods for Predicting Flow-Induced Vibration,” ASME J. Pressure Vessel Technol., 110, pp. 6–14.

4. de Langre, E., Doveil, F., Porcher, G., and Axisa, F., 1990, “Chaotic and Periodic Motion of a Non-Linear Oscillator in Relation with Flow-Induced Vibration of Loosely Supported Tubes,” ASME PVP-Vol. 189, pp. 119–125.

5. Rogers, R. J., and Pick, R. J., 1976, “On the Dynamic Spatial Response of a Heat Exchanger Tube with Intermittent Baffle Contacts,” Nucl. Eng. Des., 36, No. 1, pp. 81–90.

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