Forced transverse vibrations of an elastically connected complex simply supported double-beam system

被引:138
作者
Oniszczuk, Z [1 ]
机构
[1] Rzeszow Univ Technol, Fac Mech Engn & Aeronaut, PL-35959 Rzeszow, Poland
关键词
D O I
10.1016/S0022-460X(02)01166-5
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
The present paper is devoted to analyzing undamped forced transverse vibrations of an elastically connected complex double-beam system. The problem is formulated and solved in the case of simply supported beams. The classical modal expansion method is applied to ascertain dynamic responses of beams due to arbitrarily distributed continuous loads. Several cases of particularly interesting excitation loadings are investigated. The action of stationary harmonic loads and moving forces is considered. In discussing vibrations caused by exciting harmonic forces, conditions of resonance and dynamic vibration absorption are determined. The beam-type dynamic absorber is a new concept of a continuous dynamic vibration absorber (CDVA), which can be applied to suppress excessive vibrations of corresponding beam systems. A numerical example is presented to illustrate the theoretical analysis. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:273 / 286
页数:14
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