集中質量を付加した圧縮座屈後はりのカオス振動 : 第1報, 実験

フォーマット:

論文

責任表示:

永井, 健一 ; 山口, 誉夫

言語:

日本語

出版情報:

日本機械学会, 1994-11-25

著者名:

• 永井, 健一
• 山口, 誉夫

掲載情報:

日本機械学會論文集. C編

ISSN:

0387-5024    

巻:

60

通号:

579

開始ページ:

3733

終了ページ:

3740

バージョン:

VoR

概要:

application/pdf<br />Journal Article<br />This paper presents experimental results on chaotic vibrations of a post-buckled beam carrying a concentrated mass. The concentrated mass is attached at the point apart from the center of the beam. The beam is clamped at both ends to a base frame. The beam is deformed into a post-buckled configuration by an initial axial displacement. The displacement is controlled by the thermal elongation of the beam to the base … frame. The chaotic vibrations of the post-buckled beam appear within a restricted range of exciting frequency. The chaotic responses are generated in the sub-harmonic resonance regions of both 1/2 and 1/3 orders. The maximum Lyapunov exponent is 1.4. The chaos attractor of the dynamic response is focused clearly onto the Poincare section. The correlation dimension saturates to d=3.6 within the embedded dimension up to 10 or more. Other chaotic responses appear at the regions of a superharmonic resonance of the second order and the ultra-subharmonic resonance of fourth to fifth order corresponding to the lowest mode of vibration. 続きを見る