Method for establishing shaking model of liquid in horizontal cylindrical liquid tank with horizontal side baffle

A technology for model building and liquid sloshing, applied in instrumentation, geometric CAD, design optimization/simulation, etc., can solve problems such as unguaranteed accuracy and lengthy and complex calculations, so as to improve calculation efficiency and solve dynamic analysis problems of tank trucks Effect
CN112100935APending Publication Date: 2020-12-18HUAIYIN INSTITUTE OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAIYIN INSTITUTE OF TECHNOLOGY
Publication Date
2020-12-18

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Abstract

The invention relates to the field of kinematics and dynamics modeling, and discloses a method for establishing a shaking model of liquid in a horizontal cylindrical liquid tank with a horizontal sidebaffle. The method is based on a two-dimensional fluid dynamics analysis method of a linear potential theory and is characterized in that the horizontal side baffle is added in the horizontal cylindrical liquid tank, a continuous conformal transformation technology is utilized to map a semicircular area with the horizontal side baffle into a rectangular area, and a Laplace equation and a linearized free liquid level condition are utilized to construct symmetric and antisymmetric vibration mode truncation linear system equations of shaking of liquid in the tank. Compared with the prior art, the method has the advantages that the problem of liquid shaking of the cylindrical container is simplified into the problem of determining the non-trivial solution characteristic value of the truncation linear system equation, the calculation efficiency is improved, and the established model effectively solves the problem of kinetic analysis of a tank truck with the horizontal side baffle.
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Description

technical field

[0001] The invention belongs to the field of kinematics and dynamics modeling, in particular to a method for establishing a liquid sloshing model in a horizontal cylindrical liquid tank with a horizontal side baffle. Background technique

[0002] Sloshing is a physical phenomenon with practical significance and worthy of further study, which occurs in mobile vehicles loaded with liquid cargo, such as tank trucks, ships, rockets and spacecraft. In road traffic, liquid tank trucks have become one of the main vehicles for transporting petroleum and hazardous chemicals. During the steering and braking process, the external excitation will cause the liquid in the tank to slosh to generate sloshing force, thereby reducing the pressure of the liquid tank truck. Therefore, it is necessary to introduce anti-sloshing devices to analyze the influence of liquid sloshing on the stability of tank trucks.

[0003] Although there are many literatures on liquid sloshing in v...

Claims

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