阻尼与纵向共振对结构动力稳定的影响  

Analysis of Effect of Damping and Longitudinal Resonance on Structure Dynamic Stability

作　　者：曲淑英[1] 张瑞丰[1] 曲乃泗[2] 杨春秋[2] 

机构地区：[1]烟台大学,烟台264005 [2]大连理工大学,大连116023

出　　处：《应用力学学报》2002年第2期94-96,共3页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金 (10 14 2 0 0 1);山东省自然科学基金 (Y2 0 0 0F0 1) ;烟台大学青年基金

摘　　要：推导了有阻尼与发生纵向共振时柱状结构的动力稳定计算公式 ,计算了水中平台动力失稳区间 ,探讨了阻尼与纵向共振的影响 。An analyzing method to study the effect of damping and longitudinal resonance on the dynamic stability of columnar structures is discussed and formulas for investigate its instability zone are derived. Using the method, the instability domain is ascertained for an offshore platform subjected longitudinal loading. Finally, some useful results are obtained.

关 键 词：纵向共振 动力稳定性 动力失稳区间 阻尼 

分 类 号：O321[理学—一般力学与力学基础]