Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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A Technique for Calculations of Power Flow in Structures Using MSC/NASTRAN and PCL

MSC/NASTRAN 및 PCL을 이용한 구조물 내의 진동 파워 흐름 해석 기법

  • Published : 2001.11.01
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Abstract

The identification of power flow in dynamically loaded structures Is essential in the analysis of structure-borne noise. However there are no general purpose tools to estimate powers flow. To make matters worse. It is very difficult to measure it. The power flow can be formulated in terms of balance forces(ELFORCE) at each element and velocities at the associated node obtained with MSC/NASTHAN. In this paper the procedure which is consist of the computations of the balance forces of al1 elements and the velocities at all nodes using MSC/NASTRAN. The calculations of the power f1ow at each element using PCL(PATRAN Command Language) and the Preparation of post -processes is set UP.

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References

  1. Structure-Borne Sound Cremer, L.;Heckl, M.
  2. Statistical Energy Analysis of Dynamical System Lyon, Pichard H.
  3. JASA v.47 Measurement of Power Flow in Uniform Beams and Plates Noiseux, D. U.
  4. ASME v.111 Power Flow Finite Element Analysis of Dynamic Systems : Basic Theory and Application to Beams Nefske D. J.;Sung, S. H.
  5. JSV v.244 no.4 Power Flow Models and Analysis of In-Plane Waves in Finite Coupled Thin Plates Hong, S. Y.(et al)
  6. ASME v.112 Power Flow and Mechanical Intensity Calculations in Structural Finite Element Analysis Hambric , S. A.
  7. MSC/NASTRAN Reference Manual v.Ⅰ, Ⅱ, Ⅲ The Macneal-Schwendler Corporation
  8. MSC/PATRAN User's Manual v.4
  9. MSC/PATRAN User's Manual v.4 The Macneal-Schwendler Corporation