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Numerical simulation of liquid sloshing in a spherical tank by MPS method

Journal of Hydrodynamics 2024年第2期36卷 232-240页

作者： Cong-yi Huang Ji-fei Wang Wei-wen Zhao De-cheng Wan Computational Marine Hydrodynamic Lab(CMHL) School of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China Shanghai Aerospace System Engineering Institute Shanghai201109China

This paper investigates the sloshing phenomena in a spherical liquid tank using the moving particle semi-implicit(MPS)method,a crucial study in fluid *** from previous research focused on rectangular or LNG tanks,this work explores the unique motion patterns inherent to spherical *** accuracy of our in-house MPS solver MLParticle-SJTU is validated against experimental data and finite volume method(FVM).And the MPS method reveals a closer alignment with experimental outcomes,which suggests that MPS method is particularly effective for modeling complex,non-linear fluid *** the fluid’s response to excitation at its natural frequency is simulated,showcasing vigorous sloshing and rotational *** analyses of the fluid motion are conducted by drawing streamline diagrams,velocity vector diagrams,and vorticity *** fluid’s motion response is explored using both time-domain and frequency-domain curves of the fluid centroid,as well as the sloshing force.

关键词： Moving particle semi-implicit(MPS)method spherical tank liquid sloshing model experiment

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FLEXIBLE MAGNETIC WHEEL TYPE INTELLIGENT WELDING ROBOT FOR spherical tank

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Chinese Journal of Mechanical Engineering 2002年第2期15卷 173-176页

作者： Jiang Lipei Jiao Xiangdong Xue Long Ma Hongze Li Mingli Yang Zhaochun Department of Mechanical Engineering, Institute of Petro-chemical Technology,Beijing 102600, China 北京石油化工学院北京 102600

An intelligent welding robot for spherical tank's all-position multi-layerwelds is developed. Based on the dynamics analyzing and simulation testing, a flexible magneticwheel mechanism is created as the robot's walking carriage. It makes the robot directly attracted tothe surface of the spherical tank so as to realize the all-position walking and welding withoutrail. At the same time, a CCD real-time tracing system is developed for the robot to repeatedlytrace the all-position and multi-layer seams. The welding tests show that the welding robot can makethe all-position and multi-layer welds with high tracing accuracy, excellent quality and reliablebehavior, and it can be applied for practical production.

关键词： Welding robot All-position welding Automatic welding spherical tank

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Study on full automatic arc welding machine for spherical tank

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China Welding 2002年第1期11卷 34-37页

作者：蒋力培张甲英俞建荣 The Institute of Petro-chemical Technology Beijing 102600 ***

A full automatic welding machine for spherical tanks' all position multi layer welds has been developed. This machine is mainly composed of a two dimension seam tracking system based on microcomputer's memory and a welding tractor as well as rail. The main features of the machine are: while welding the first layer of a seam, its microcomputer system can analyze and store the tracing information from a two dimension sensor, and control the welding head device to realize two dimension real time tracing; while welding the second layer up to the top layer of the seam, it can realize two dimension tracing based on the memorial data, automatically determine the layer number and continually sway the welding head. The welding test shows that the machine has good tracing and welding behavior, and is suitable for spherical tank's all position multi layer welds.

关键词： full automatic welding machine spherical tank memorial tracing all position welding

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Key Technology of Cutting and Moving Large spherical tank

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International Journal of Plant Engineering and Management 2021年第3期26卷 167-179页

作者： YANG Wei LIU Xinshang HU Xuefeng The Boiler and Pressure Vessel Safety Inspection Institute of Henan Province Luohe 450000He'nanChina

This paper mainly introduces the scientific cutting and hoisting construction technology before the large spherical tank(hereinafter referred to as spherical tank)moving and loading,so as to better ensure the construc... 详细信息

关键词： spherical tank moving and loading cutting and hoisting technology

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