Elastic constraining element for rocket engine thrust measurement

A rocket engine and elastic confinement technology, which is applied in the direction of rocket engine device, jet engine test, gas turbine engine test, etc., can solve the problem that the elastic constraint element cannot measure the lateral thrust of the engine, and achieve simple structure, improved measurement accuracy, and dynamic good performance

Active Publication Date: 2020-05-29
XIAN AEROSPACE PROPULSION TESTING TECHN INST
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Problems solved by technology

[0008] In order to solve the technical problem that the existing elastic constraining elements cannot measure the lateral thrust of the engine, the present invention provides an elastic constraining element for rocket engine thrust measurement

Method used

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  • Elastic constraining element for rocket engine thrust measurement
  • Elastic constraining element for rocket engine thrust measurement
  • Elastic constraining element for rocket engine thrust measurement

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] In order to meet the requirements for engine lateral thrust measurement, the invention provides an elastic constraint element for rocket engine thrust measurement.

[0035] Such as image 3 As shown, the elastic constraining element for rocket engine thrust measurement in the embodiment of the present invention includes a cylindrical body 41, a notch group I and a notch group II; in the three-dimensional Cartesian coordinate system, the central axis of the cylindrical body 41 is defined as the Z axis, The notch group I and the notch group II are sequentially arranged along the Z axis; wherein, the notch group I includes two first notches 42, and the two first notches 42 are respectively oriented towards the positive and negative directions of the X axis, and the two A first notch 42 is arranged symmetrically about the Z axis; notch group II includes two secon...

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Abstract

The invention discloses an elastic restraint element for rocket engine thrust measurement. The elastic restraint element comprises a cylindrical body, a notch group I and a notch group II, wherein thenotch group I comprises two first notches, the two first notches separately face the positive and negative directions of the X-axis, and the two first notches are symmetrically arranged about the Z-axis. The notch group II includes two second notches, the two second notches separately face the positive and negative directions of the Y-axis, and the two second notches are symmetrically arranged about the Z axis. The projection of the first notches in the X-axis direction is a rectangle with four chamfered corners; the projection of the first notches is a semicircle in the Y-axis direction; anda straight line is arranged at each end of the semicircle, and the straight lines are perpendicular to the X-axis and Z-axis. The elastic restraint element for the rocket engine thrust measurement has a good rigidity ratio, can transmit the axial force well, avoids the non-axial interference force, and solves the technical problem that an existing elastic restraint element cannot perform engine lateral thrust measurement.

Description

technical field [0001] The invention relates to an elastic constraining element for rocket engine thrust measurement. Background technique [0002] The thrust of the engine needs to be measured in the rocket engine test. figure 1 Shown is the combined structural diagram of the engine thrust measurement, the upper end of the moving frame 2 of the engine 1 is suspended on the fixed frame through the preload device 3 , and the side of the moving frame 2 is connected with the fixed frame 5 through the elastic constraint 4 . [0003] Theoretically speaking, the axial and lateral thrust distribution of the engine can be obtained by measuring the force on the upper end and the side of the moving frame. The connection structure between the "type spring plate and the fixed frame and the moving frame is as follows: figure 2 shown. [0004] The "mountain" type spring plate is used as an elastic constraint element between the fixed frame and the moving frame, and there are the follo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K9/96G01M15/14G01L5/13
CPCF02K9/96G01L5/133G01M15/14
Inventor 唐斌运李大海刘洋陈雨罗帅帅
Owner XIAN AEROSPACE PROPULSION TESTING TECHN INST
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