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Total pressure distortion generator

A distortion generator and total pressure technology, applied in the testing of instruments, engines, and testing of machinery/structural components, etc., can solve problems such as insufficient reflection of multiple low-pressure areas

Pending Publication Date: 2020-07-07
中国航发控制系统研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This cannot fully reflect the characteristics of multiple low-pressure areas, stable and dynamic total pressure distortions in a wide range

Method used

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0034] A total pressure distortion generator proposed by an embodiment of the present invention includes a frame body 1, a vertical streamlined hollow splint 2, a blocking partition 3, a distortion element 4, a push rod 5, and a cylinder assembly 6;

[0035] The front plate and the rear plate of the frame body 1 are provided with an opening 101 corresponding to the required air flow cross-sectional shape, for example, the opening 101 can be circular, and the shape of the opening 101 is generally consistent with the cross-sectional shape of the engine inlet outlet;

[0036] The vertical streamlined hollow splints 2 are installed parallel to each other between the front plate and the rear plate of the frame body 1; the inner space of the vertical streamlined hollow splints 2 is used for installing push rods 5; each vertical streamlined hollow splints 2 are install...

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Abstract

The invention provides a total pressure distortion generator. The total pressure distortion generator comprises a frame body, vertical streamline hollow clamping plates, blocking partition plates, distortion elements, push rods and an air cylinder assembly, wherein the vertical streamline hollow clamping plates are installed between a front plate and a rear plate of the frame body in parallel; thevertical streamline hollow clamping plates are installed at intervals; each blocking partition plate is installed between every two adjacent vertical streamline hollow clamping plates so as to enablethe shape of the overall airflow inlet and outlet surface formed by each airflow channel between the assembled vertical streamline hollow clamping plates to correspond to the shape of the needed airflow cross section; each distortion element is installed between every two adjacent vertical streamline hollow clamping plates and used for adjusting the airflow to form air inlet distortion; each pushrod is arranged in an inner space of the vertical streamline hollow clamping plate, and each push rod is connected with one corresponding distortion element; and each cylinder in the cylinder assembly is connected with a corresponding push rod. According to the invention, a steady-state and dynamic distortion ratio adjustable total pressure distortion simulation function can be realized.

Description

technical field [0001] The invention relates to an engine air intake simulation device, in particular to a total pressure distortion generator. Background technique [0002] During the flight of the aircraft, due to the influence of maneuvering flight, aircraft fuselage and inlet structure, atmospheric turbulence, shock wave and boundary layer interference, inhalation of missile launch exhaust and other factors, the airflow distribution at the outlet of the aircraft inlet will be uneven. , causing engine intake distortion. For fighter jets and unmanned combat aircraft, the total pressure distortion persists in the engine operation, which is an important factor leading to the deterioration of engine performance and the reduction of aerodynamic stability. Total pressure distortion is a phenomenon of uneven axial or radial distribution of total pressure, which will cause loss of engine performance and cause engine stability problems. Severe total pressure distortion will cause...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/02
CPCG01M15/02
Inventor 赵柏松杨惠民万信亮姚锡锋王亚岗
Owner 中国航发控制系统研究所
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