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Estimation of power transmission to a flexible received from a stiff source using a power mode approach

Estimation of power transmission to a flexible received from a stiff source using a power mode approach
Estimation of power transmission to a flexible received from a stiff source using a power mode approach
A power mode approach to estimating the vibrational power transmitted to a receiver structure by multiple sources is reviewed. This approach is then extended to estimating the power transmitted to a flexible receiver from a stiff source through discrete couplings. There may be both translational and rotational coupling degrees of freedoms, and/or force and moment excitations. Approximations are developed for the upper and lower bounds and the frequency average of the transmitted power. These depend only on the point mobilities of the source and receiver, and thus require much less data than an exact description. The approximations are most accurate when the mobility or stiffness mismatch of the coupled system is large enough, e.g., the source has, on average, low mobility compared to that of the receiver. Numerical examples are presented concerning a multi-point coupled beam/plate model.
0022-460X
525-542
Ji, L.
fe6acc7e-f67e-4876-ba5a-14c8f7ce3ebb
Mace, B.R.
cfb883c3-2211-4f3a-b7f3-d5beb9baaefe
Pinnington, R.J.
8c573d68-9de6-46df-95a4-23130f4fac9f
Ji, L.
fe6acc7e-f67e-4876-ba5a-14c8f7ce3ebb
Mace, B.R.
cfb883c3-2211-4f3a-b7f3-d5beb9baaefe
Pinnington, R.J.
8c573d68-9de6-46df-95a4-23130f4fac9f

Ji, L., Mace, B.R. and Pinnington, R.J. (2003) Estimation of power transmission to a flexible received from a stiff source using a power mode approach. Journal of Sound and Vibration, 268 (3), 525-542. (doi:10.1016/S0022-460X(03)00255-4).

Record type: Article

Abstract

A power mode approach to estimating the vibrational power transmitted to a receiver structure by multiple sources is reviewed. This approach is then extended to estimating the power transmitted to a flexible receiver from a stiff source through discrete couplings. There may be both translational and rotational coupling degrees of freedoms, and/or force and moment excitations. Approximations are developed for the upper and lower bounds and the frequency average of the transmitted power. These depend only on the point mobilities of the source and receiver, and thus require much less data than an exact description. The approximations are most accurate when the mobility or stiffness mismatch of the coupled system is large enough, e.g., the source has, on average, low mobility compared to that of the receiver. Numerical examples are presented concerning a multi-point coupled beam/plate model.

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Published date: 2003

Identifiers

Local EPrints ID: 10088
URI: http://eprints.soton.ac.uk/id/eprint/10088
ISSN: 0022-460X
PURE UUID: efc8593d-4f34-42d0-8634-fc6df3f90295
ORCID for B.R. Mace: ORCID iD orcid.org/0000-0003-3312-4918

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Date deposited: 10 Mar 2005
Last modified: 15 Mar 2024 04:58

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Contributors

Author: L. Ji
Author: B.R. Mace ORCID iD
Author: R.J. Pinnington

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