대한기계학회논문집 (Transactions of the Korean Society of Mechanical Engineers)
- 제15권2호
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- Pages.478-487
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- 1991
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- 1225-5963(pISSN)
DOI QR Code
불연속 단면을 갖고 제어 종동력을 받는 자유 Timoshenko보의 안정성 해석
Stability Analysis of a Discontinuous Free Timoshenko Beam Subjected to a Controlled Follower Force
초록
In this study, dynamic stability of discontinuous free Timoshenko beam, barring a concentrated mass, under constant follower force is considered. Governing differential equations are derived based on the extended Hamilton's principle and finite element method is applied for numerical analysis. Conclusions of the study are as follows : (1) Without force direction control, (i) the critical follower force at instability is increased with concentrated mass regardless of discontinuity. (ii) the minimum critical follower force is located in the vicinity of discontinuity position .xi.