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A lateral stiffness test system for high temperature internal pressure shear deformation of pipeline system

A technology of experimental testing and shear deformation, which is applied in the testing of mechanical components, jet engine testing, gas turbine engine testing, etc., and can solve the effects of reduced pipeline shear stiffness, increased pipeline shear stiffness, and structural stiffness. It is difficult to accurately assess and other problems to achieve the effect of reducing adverse effects

Active Publication Date: 2021-05-04
BEIJING INST OF STRUCTURE & ENVIRONMENT ENG +1
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Problems solved by technology

The shear stiffness of the pipeline decreases under the high temperature environment, and the shear stiffness of the pipeline increases under the action of internal pressure. It is difficult to accurately evaluate the influence of the superimposed load environment of high temperature and internal pressure on the structural stiffness

Method used

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  • A lateral stiffness test system for high temperature internal pressure shear deformation of pipeline system
  • A lateral stiffness test system for high temperature internal pressure shear deformation of pipeline system
  • A lateral stiffness test system for high temperature internal pressure shear deformation of pipeline system

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0036]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present ...

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Abstract

The invention discloses a lateral stiffness test system for high-temperature internal pressure shear deformation of a pipeline system, which solves the technical difficulties of equivalent simulation of lateral shear deformation under high temperature and internal pressure working conditions of the pipeline structure, and to a certain extent The influence of the tooling friction on the lateral stiffness due to the axial elongation of the pipeline is excluded. The test system can simultaneously simulate "temperature + internal pressure + lateral shear deformation" and assess structural strength, stiffness, and sealing performance, which can provide design basis for various engine-related pipeline structures.

Description

technical field [0001] The invention relates to the technical field of ground comprehensive simulation tests, in particular to the high temperature internal pressure shear deformation lateral stiffness of the pipeline system in the high temperature, internal pressure, lateral deformation and other working states of the gas pipeline system of missiles, rockets and other types of aircraft engines Experiment with the test system. Background technique [0002] The pipeline system is an important subsystem of the aircraft engine, which can be divided into different pipeline systems such as transportation, pressurization, and flame exhaust according to its function. Pipelines have different functions, and they are subjected to different thermal and mechanical comprehensive environments. Affected by the comprehensive environment, the pipeline structure will have problems such as reduced strength, weakened sealing performance, and changes in inherent mechanical properties. In sever...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01M15/14
CPCG01M13/00G01M15/14
Inventor 薛宇轩田玉坤马星博何钦华杜安革
Owner BEIJING INST OF STRUCTURE & ENVIRONMENT ENG
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