L形输流管道三维振动固有特性研究OACHSSCDCSTPCD
Research on Natural Characteristics of Three-Dimensional Vibration of L-shaped Pipe
输流管道在众多工程领域中发挥着输送介质的作用,其振动特性是动力学研究者关注的热点.鉴于管道形状的多样性,构建复杂构型管道的动力学模型显得尤为重要.采用绝对节点坐标法(absolute nodal coordinate for-mulation,ANCF)建立三维管道动力学模型,并以两端弹性支撑的L形管为例进行分析.基于广义扩展拉格朗日方程得到系统动力学方程,借助ANSYS软件对模态结果进行比较验证,并分析竖直和扭转弹簧刚度、流速、结构参数以及充液…查看全部>>
Fluid-conveying pipelines are crucial in various engineering fields for transporting media,and their vibration characteristics are a key focus for dynamics researchers.Due to the diversity of pipeline shapes,con-structing dynamic models for complex configurations is particularly important.This study employs the Absolute Nodal Coordinate Formulation(ANCF)to establish a three-dimensional dynamic model for pipelines and ana-lyzes an L-shaped pipeline with elast…查看全部>>
郭宇辰;丁虎
上海大学 力学与工程科学学院,上海 200444上海大学 力学与工程科学学院,上海 200444
土木建筑
绝对节点坐标法(ANCF)三维L形管道弹性支撑固有频率临界流速
absolute nodal coordinate formulation(ANCF)three-dimensional L-shaped pipelineelastic sup-portsnatural frequencycritical velocity
《宁夏大学学报（自然科学版）》 2024 (3)
259-266,8
国家杰出青年科学基金资助项目(12025204)
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