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2 Computer Assisted Mechanics and Engineering Sciences

2 1998

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Vibrational power flow in beam-plate structures: Part II: Beam plate-structure with isolating components

Yi C., Dietz P., Hu X.

Computer Assisted Mechanics and Engineering Sciences

1998

Vol. 5, nr 4

361-372

The expressions of vibrational power flow (VPF) in beam-plate stuctures (BPS) have been derived in the Part I of this paper. Based on those results got in Part I, Part II presents the expressions of VPF in BPS under the following three cases as shown Figs. 1,2 and 3 below. (1) the isolating component 1 (IC1) being added at the free end of the beam; (2) isolating component 2 (IC2) being embedded between the beam and the plate; and (3) IC1 and IC2 being in BPS simultaneously (IC1 and IC2). According to these expressions, the corresponding numerical calculations are completed. The influence of parameter of the isolating components on VPF is also considered in this part. And then numerical calcilations of VPF are verified by the measurements of VPF. Some valuable conclusions have been applied to vibration control of tracked vehicles mentioned in Part I.

Vibrational power flow in beam-plate structures: Part I: Basic theory

Yi C., Dietz P., Hu X.

Computer Assisted Mechanics and Engineering Sciences

1998

Vol. 5, nr 4

345-359

This paper presents the expressions of Vibrational Power Flow (VPF) in Beam-Plate Structures (BPS). These expressions are derived based on structural dynamics. BPS is composed of a constant cross-section beam and a thin flat rectangular plate. In expressions the plate is four-edge simply suppored and four-edge fixedly supported, respectively. The numerical calculation of these expressions is implemented. Meanwhile, the different parameters of beam and plate are also considered in the calculation. Finally, the numerical solutions of VPF in BPS are compared with the corresponding the measured VPF. The numerical VPFs have a good agreement with the measured VPF. The results of VPF provide a tool for analysing vibrational energy transmission between the support roller and the armored plate of tracked vehicles.