Power Flow and Mechanical Intensity Calculations in Structural Finite Element AnalysisSource: Journal of Vibration and Acoustics:;1990:;volume( 112 ):;issue: 004::page 542Author:S. A. Hambric
DOI: 10.1115/1.2930140Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The identification of power flow paths in dynamically loaded structures is an important, but currently unavailable, capability for the finite element analyst. For this reason, methods for calculating power flows and mechanical intensities in finite element models are developed here. Formulations for calculating input and output powers, power flows, and mechanical intensities for beam and plate/shell element types are derived. NASTRAN is used to calculate the required velocity, force, and stress results of an analysis, which a post-processor then uses to calculate power flow quantities. Test models include a simple truss and a beam-stiffened cantilever plate. Both test cases showed reasonable power flow fields over low to medium frequencies.
keyword(s): Finite element analysis , Flow (Dynamics) , Stress , Trusses (Building) , Force , Cantilevers , Finite element model , Frequency AND Shells ,
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| contributor author | S. A. Hambric | |
| date accessioned | 2017-05-08T23:34:13Z | |
| date available | 2017-05-08T23:34:13Z | |
| date copyright | October, 1990 | |
| date issued | 1990 | |
| identifier issn | 1048-9002 | |
| identifier other | JVACEK-28795#542_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/107819 | |
| description abstract | The identification of power flow paths in dynamically loaded structures is an important, but currently unavailable, capability for the finite element analyst. For this reason, methods for calculating power flows and mechanical intensities in finite element models are developed here. Formulations for calculating input and output powers, power flows, and mechanical intensities for beam and plate/shell element types are derived. NASTRAN is used to calculate the required velocity, force, and stress results of an analysis, which a post-processor then uses to calculate power flow quantities. Test models include a simple truss and a beam-stiffened cantilever plate. Both test cases showed reasonable power flow fields over low to medium frequencies. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Power Flow and Mechanical Intensity Calculations in Structural Finite Element Analysis | |
| type | Journal Paper | |
| journal volume | 112 | |
| journal issue | 4 | |
| journal title | Journal of Vibration and Acoustics | |
| identifier doi | 10.1115/1.2930140 | |
| journal fristpage | 542 | |
| journal lastpage | 549 | |
| identifier eissn | 1528-8927 | |
| keywords | Finite element analysis | |
| keywords | Flow (Dynamics) | |
| keywords | Stress | |
| keywords | Trusses (Building) | |
| keywords | Force | |
| keywords | Cantilevers | |
| keywords | Finite element model | |
| keywords | Frequency AND Shells | |
| tree | Journal of Vibration and Acoustics:;1990:;volume( 112 ):;issue: 004 | |
| contenttype | Fulltext |