Boundary simulation device and method for thin-walled cylindrical shell structure experiment

A technology of thin-walled cylinders and simulation devices, which is applied in the testing of machines/structural components, measuring devices, testing of mechanical components, etc. It can solve problems such as no boundary simulation devices, and achieve the effect of simple structure and low cost

Inactive Publication Date: 2011-08-03
ZHEJIANG UNIV
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Problems solved by technology

The thin-walled cylindrical shell structure test is very sensitive to the boundary conditions, so it is very important to accurately simulate the top and bottom boundaries of the thin-walle

Method used

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  • Boundary simulation device and method for thin-walled cylindrical shell structure experiment
  • Boundary simulation device and method for thin-walled cylindrical shell structure experiment
  • Boundary simulation device and method for thin-walled cylindrical shell structure experiment

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing.

[0017] like figure 1 As shown, the boundary simulation device in the thin-walled cylindrical shell structure test of the present invention includes: a central support rod 2 , an upper circular plate 3 , a detachable lower circular plate 4 and a sleeve 5 . Wherein, the upper ring plate 3 is fixed on the central support rod 2 through the sleeve 5, the end of the central support rod 2 is threaded with the detachable lower ring plate 4, and the upper ring plate 3 and the detachable lower ring plate The ring plates 4 have the same radius.

[0018] figure 2 Shown is the structure of the upper ring plate 3, which is mainly integrally formed by an outer ring and a cross rib. There is a hole in the middle of the cross rib, and the central support rod 2 is fixed by the sleeve 5 after passing through the hole.

[0019] like image 3 As shown, the detachable lower ring plate 4 in...

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Abstract

The invention discloses a boundary simulation device and method for a thin-walled cylindrical shell structure experiment. The device comprises a central support bar, an upper ring plate and a detachable lower ring plate. A thin-walled cylindrical shell model is manufactured with the upper ring plate and the lower ring plate as templates, and a glass cement is coated on the bottom boundary of the thin-walled cylindrical shell model, The lower ring plate is shifted inward by loosening bolts on the detachable lower ring plate, and then the same glass cement is coated at the inner side of the model by a circle to create a bottom fixed boundary condition. The top of the thin-walled cylindrical shell model is fixed on the upper ring plate by adopting an aluminium strip at the top of the thin-walled cylindrical shell to create a top fixed boundary condition. The device can be detached flexibly, and plays the roles of serving as a template in the manufacturing process of a test piece and creating the bottom and the top boundary conditions for the test piece. The device can simulate a floating roof shell when the top boundary is loosened, and simulate a fixed roof shell when the top boundary is restrained.

Description

technical field [0001] The invention belongs to the technical field of structural engineering, and in particular relates to a boundary simulation device in a thin-walled cylindrical shell structure test and a boundary simulation method using the device. Background technique [0002] Thin-walled cylindrical shells are widely used in various shell structures in civil engineering, such as storage tanks, silos, masts, chimneys, and pipelines. Large cylindrical shells built on soft ground are prone to various deformations, and the uneven settlement around the shell is the most detrimental to the stability of the shell. Thin-walled cylindrical shells are divided into floating-roof shells and solid-roof shells. The thin-walled cylindrical shell structure test is very sensitive to the boundary conditions, so it is very important to accurately simulate the top and bottom boundaries of the thin-walled cylindrical shell, which puts forward requirements for the experimental device. How...

Claims

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Application Information

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IPC IPC(8): G01M13/00
Inventor 赵阳杨勇
Owner ZHEJIANG UNIV
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