CAJ | 학술논문

用Hamilton原理建立了复合材料叠层圆柱壳非线性动力稳定性理论的一般性基本方程，其中包含了非线性大挠度，横向剪切，纵向惯性力等因素用变分法获得基本方程的解分析表明：叠层圆柱壳在动载荷下会发生参数共振而进入动力不稳定区域而导致动力失稳计算了几种典型复合材料圆柱壳：即T300／5208石墨环氧，E-玻璃环氧和ARALL圆柱壳结果表明：这些因素对于各种复合材料圆柱壳的动力稳定性具有程度不同的重要影响，所以研究叠层圆柱壳动力稳定性时，考虑这些因素是重要的
용Hamilton원리건립료복합재료첩층원주각비선 성동력은정성이론적일반성기본방정，기중포함료비선성대뇨도，횡향전절，종향관성력등 인소용변분법획득기본방정적해분석표명：첩층원주각재동재하하회 발생삼수공진이진입동력불은정구역이도치동력실은계산료궤충전형복합재료원 주각：즉T300／5208석묵배양，E-파리배양화ARALL원주각결과표명：저사인소 대우각충복합재료원주각적동력은정성구유정도불동적중요영향，소이연구첩층원주각동력 은정성시，고필저사인소시중요적
Hamilton Principle was used to derive th e general governing equations of nonlinear dynamic stability for laminated cylind rical shells in which, factors of nonlinear large deflection, transverse shear a nd longitudinal inertia force were concluded. Equations were solved by variation al method. Analysis reveals that under the action of dynamic load, laminated cylin drical shells will fall into a state of parametric resonance and enter into the dy namic unstable region that causes dynamic instability of shells. Laminated shell s of three typical composites were computed: i.e.T300／5208 graphite epoxy E-gla s s epoxy, and ARALL shells. Results show that all factors will induce important i nfluence for dynamic stability of laminated shells. So, in research of dynamic s tability for laminated shells, to consider these factors is important.