Ablation performance testing system for thermal insulation material test piece

A technology of ablation performance and testing system, which is applied in the direction of applying stable tension/pressure to test the strength of materials, etc., which can solve the problems of inconsistency in the actual use state.

Inactive Publication Date: 2019-05-10
内蒙动力机械研究所
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The invention provides a test system for ablation performance of a thermal insulation material test piece to solve the problem that the measurement method of the ablation performance of the thermal insulation layer in a solid rocket motor is inconsistent with the actual use state

Method used

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  • Ablation performance testing system for thermal insulation material test piece
  • Ablation performance testing system for thermal insulation material test piece
  • Ablation performance testing system for thermal insulation material test piece

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Experimental program
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Embodiment approach

[0044] The ablation performance test system for thermal insulation materials will be further described in conjunction with the accompanying drawings and specific implementation process.

[0045] phase one trial

[0046] Before the test, according to the attached figure 1 As shown, fix the heat insulation layer test piece on the fixed position of the heater surface with the clamp of fracture testing machine 4;

[0047] Install the baffle plate 17 for shielding heating on the back direction of a group of quartz halogenated incandescent lamps and heat the test piece in the front direction, and fix it near the 4 fixtures of the fracture testing machine after the installation is completed;

[0048] For a fixed period of time, the test piece without deformation of the thermal insulation layer is heated using a quartz halogenated incandescent lamp device 5 . The heating time is given by the control computer 1 and the control device that sends on and off the stable power supply of t...

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Abstract

The invention relates to an ablation performance testing system for a thermal insulation material test piece. The ablation performance testing system comprises a control device, a fracture testing machine, a quartz halogenated incandescent lamp device, a fracture force sensor, a clamp displacement sensor, an information measuring system and an electromagnetic valve. The scheme of the invention isapplicable to the determination of the ablation performance of a thermal insulation layer in a solid rocket motor, and can simulate the working conditions of the thermal insulation layer in the solidrocket motor under boundary conditions such as structural deformation, thermal load and the like; and the test data can be used for comparing ablation characteristics of different materials, and alsohas important reference value for the thermal insulation structure design and thermal insulation ablation tests of the solid rocket motor.

Description

technical field [0001] The invention relates to a material ablation performance test system for a thermal insulation layer material in a solid rocket motor, in particular to an ablation performance test system for a heat insulation material test piece. Background technique [0002] The solid rocket motor is the "heart" of the missile weapon, which is directly related to the overall level of the missile and the success or failure of the entire weapon system. The thermal insulation layer of the solid rocket motor is a thermal protection material located between the inner surface of the shell and the propellant. Decomposition and ablation take away most of the heat to slow down the propagation speed of the high temperature of the gas to the shell, prevent the shell from reaching a temperature that endangers its structural integrity, and ensure the normal operation of the engine. One of the most important properties considered in the design process of the solid rocket motor insu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/18
Inventor 薛丰马群冀明马华文徐晓红
Owner 内蒙动力机械研究所
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