一方向繊維強化プラスチックの減衰特性解析

• 上田 宏樹

• 井上 喜雄

書誌事項

タイトル別名

• Vibration Analysis on FRP Considering Damping Effect.
• 1ホウコウ センイ キョウカ プラスチック ノ ゲンスイ トクセイ カイセキ

抄録

The anisotropic property of Fiber Reinforced Plastics (FRP) greatly influences the vibration characteristics. In this paper, a natural frequency of FRP considered its anisotropic property by the rule of mixture is calculated by using the real eigenvalue analysis of the FEM model. It is assumed that the dissipation model of vibration energy is presented by the mass-spring model. This model expresses shear springs of fiber and matrix resin which connect in series. The spring coefficients are identified by the sensitivity analysis. In this analysis, the elastic modulus of matrix resin is chosen as the design parameter. Then matrix resin is viscoelastic, the shear spring is presented by k_m(1 + iη_m). Therefore, the loss factor of FRP is calculated by dividing imaginary part of the total shear spring coefficient by real one. This method is sufficiently reliable to predict the vibration characteristics of FRP.

収録刊行物

• 日本機械学会論文集Ｃ編

  日本機械学会論文集Ｃ編 64 (619), 831-837, 1998

  一般社団法人 日本機械学会

キーワード

• Damping
• Fiber Reinforced Plastics
• Loss Factor

詳細情報

• CRID: 1390282681304410880
• NII論文ID: 110002383616
• NII論文ID: 130004232689
• NII書誌ID: AN00187463
• DOI: 10.1299/kikaic.64.831
• COI: 1:CAS:528:DyaK1cXjtlKkt74%3D
• ISSN: 18848354
• ISSN: 03875024
• NDL書誌ID: 4436535
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4436535
• Web Site: http://www.jstage.jst.go.jp/article/kikaic1979/64/619/64_619_831/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可