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1996 Fiscal Year Final Research Report Summary

Research on improvement of transfer influence coefficient method combined with concept of substructure synthesis method

Research Project

Project/Area Number 07650298
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Dynamics/Control
Research InstitutionFukuoka Institute of Technology

Principal Investigator

KONDOU Takahiro  Fukuoka Institute of Technology, Faculty on Engineering, Professor, 工学部, 教授 (80136522)

Co-Investigator(Kenkyū-buntansha) SUEOKA Atsuo  Kyushu University, Faculty of Engineering, Professor, 工学部, 教授 (80038083)
Project Period (FY) 1995 – 1996
KeywordsFree Vibration / Forced Vibration / Nonlinear Vibration / Natural Frequency / Multi-Degree-of-Freedom System / Transfer Stiffness Coefficient Method / Transfer Influence Coefficient Method / Substructure Synthesis Method
Research Abstract

In this research, the transfer stiffness coefficient method was developed in order to improve the computation efficiency and extend the applicability of the transfer influence coefficient method through introduction of the concept of the substructure synthesis method. The following results were obtained.
1. The fundamental concept of the transfer stiffness coefficient method was formulated for linear free and linear forced vibration analyzes of a straight-line beam structure as the most fundamental example of use of the present method. The validity of the algorithm was confirmed by the numerical computational results from the viewpoints of both computation speed and memory size compared with those of the transfer matrix method and the transfer influence coefficient method.
2. The transfer stiffness coefficient method was applied to the structure having closed loops which can not be analyzed by the transfer influence coefficients method at all. As an typical example, an algorithm based on … More the present method was formulated for the free and forced vibration analyzes of the 2-and 3-dimensional Rahmen structures constructed from some uniform beams. The superiority of the present method to the transfer matrix method was confirmed by the numerical computational results.
3. The incremental transfer stiffness coefficient method was developed in order to analyze the periodic steady-state vibrations of the large scale structure having local nonlinear elements by combining the concepts of both the method of harmonic balance and the transfer stiffness coefficient method through the incremental method. An algorithm was formulated to analyze a straight-line beam structure supported by the nonlinear base support elements. The present method separates the structure into the linear beam elements and the nonliner base support elements, and the computation for the linear beam elements is eliminated entirely from the process of iterative approximation. The computation cost was reduced remarkably by applying the present method. Less

  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] 近藤孝広: "伝達影響係数法を結合した逆反復法による回転体の安定性解析" 福岡工業大学エレクトロニクス研究所所報. 12. 25-31 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Takahiro KONDOU: "An Extension of the Transfer Influence Coefficient Method by Mears of the Concept of the Substructure Synthesis Method" Proceedings of Asia-Pocific Vibration Conference′95. 2. 590-595 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Takumi INOUE: "Application of the Transfer Influence Coefficient Method to Eigenvalue Analysis" Proceedings of Asia-Pacific Vibration Canference′95. 2. 606-611 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 近藤孝広: "部分構造合成法を援用した伝達剛性係数法の提案(直線状はり構造物の線形自由および強制振動解析)" 日本機械学会論文集(C編). 62・596. 1277-1284 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 近藤孝広: "伝達影響係数法を結合した逆反復法による非対称回転軸の安定性解析" 福岡工業大学エレクトロニクス研究所所報. 13. 1-8 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Takahiro KONDOU: "Stability Analysis of Rotor Systems by Inverse Iteration Method Combined with the Concept of Transfer Influence Coefficient method" Reports of the Electronic Research Laboratory of Fukuoka Institute of Technology. Vol. 12. 25-31 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takahiro KONDOU: "An Extension of the Transfer Influence Coefficient Method by Means of the Concept of the Substructure Synthesis Method" Proceedings of Asia-Pacific Vibration Conference '95. Vol. 2. 590-595 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takumi INOUE: "Application of the Transfer Influence Coefficient Method to Eigenvalue Analysis" Proceedings of Asia-Pacific Vibration Conference '95. Vol. 2. 606-611 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takahiro KONDOU: "Transfer Stiffness Coefficient Method Combined with the Concept of Substructure Systhesis Method (Linear Free and Forced Vibration Analysis of a Straight-line Beam Structure)" Transactions of the Japan Society of Mechanical Engineers. Vol. 62, No. 596. 1277-1284 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takahiro KONDOU: "Stability Analysis of an Asymmetric Rotating Shaft by the Inverse Iteration Method Combined with the Concept of Transfer Influence Coefficient method" Reports of the Electronic Research Laboratory of Fukuoka Institute of Technology. Vol. 13. 1-8 (1996)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-09  

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