摘要
在梁自重和结构阻尼一并考虑的情况下，建立直立梁弯曲受振模型和变系数偏微振动方程。在获得常系数齐次方程相应边界条件下的正交振型函数后，运用伽辽金法求其广义解。讨论和图示稳态响应下的幅频特性，分析系统的共振条件和参数的影响。
Considering self-weight and construction damping, the bending oscillation model of vertical beam and its partial differential oscillation equation with variable coefficient are constructed.After getting the orthogonal oscil lation-modelfunction of corresponding partial differential equation with constant coefficient under the same boundary conditions, the generalized solution is achieved by employing Garlekin method.The frequency-amplitude characters in stable response are studied and illustrated.The condition of resonance and the influences of parameters are analyzed.
出处
《四川轻化工学院学报》
1996年第4期10-13,共4页
Journal of Sichuan Institute of Light Industry and Chemical Technology
关键词
直立梁
振型函数
振动
弯曲振动
vertical beam
oscillation-model-function
Garlekin method
forced oscillation
