竖井式贯流泵站流激振动特性及安全评价研究OA
Flow-induced Vibration Characteristics and Safety Assessment of Pump Structure of Shaft-type Tubular Pumping Station
针对竖井式贯流泵站振动安全问题,建立流体-机械-结构耦合分析模型,基于流固耦合方法,采用 RNG k-ε 湍流模型结合滑移网格技术,分析泵房结构在正常运行工况下的振动位移、速度及加速度的分布特性.研究结果表明,泵房振动满足控制标准,振动位移极值出现在进口段流道顶部检修闸门闸墙,振动速度和加速度极值出现在下部混凝土与泵壳连接处.研究成果可为同类型贯流式泵站结构振动控制及运维管理提供参考依据.
A fluid-pump-structure coupling analysis model is established for studying the vibration safety of shaft-type tubular pump stations.Based on the fluid-structure interaction method,the RNG k-ε turbulence model combined with the sliding grid technique is employed to analyze the distribution characteristics of vibration displacement,velocity,and acceleration of the pump house structure under normal operating conditions.The research shows that the vibration of the pump house meets control standards,with the extreme value of vibration displacement occurring at the gate wall of maintenance gate in the top section of inlet channel,while the extreme values of vibration velocity and acceleration appear at the connection between the lower concrete and the pump casing.The research can provide a reference for vibration control and operational management of similar tubular pumping station structures.
张汉云;林润丰;吴科军;顾双;周铫;施国土;章寰宇
河海大学水利水电学院,江苏 南京 210024河海大学水利水电学院,江苏 南京 210024浙江省余姚市发展和改革局,浙江 余姚 315400江苏省骆运水利工程管理处,江苏 宿迁 223800浙江省余姚市水库管理局服务中心,浙江 余姚 315400浙江省围海建设集团股份有限责任公司,浙江 宁波 315100河海大学水利水电学院,江苏 南京 210024
建筑与水利
泵站流固耦合流激振动振动安全评价
pump stationfluid-structure interactionflow-induced vibrationvibration safety assessment
《水力发电》 2026 (6)
37-43,105,8
国家自然科学基金面上项目(524791220)宁波市水利科技项目(NSKA202401)淮河入海水道二期工程枢纽建设质量及安全保障提升关键技术研究(RHSD2/FW-2024-03)
评论