Rocket engine cold swinging digital test method

A rocket engine and test method technology, which is applied in the field of rocket engine cold swing digital test, can solve the problems of lack of understanding and evaluation, lack of knowledge, etc., and achieve the effect of avoiding heterogeneous model conversion, reasonable steps, and complete technology

Active Publication Date: 2015-10-14
BEIJING INST OF ASTRONAUTICAL SYST ENG +1
View PDF6 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the cold swing test of the existing technology is mainly based on the ground test of the finished product, and there is no necessary means to carry out the test in the early stage of engine design to check whether the pipeline, nozzle,

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rocket engine cold swinging digital test method
  • Rocket engine cold swinging digital test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention includes the following technical solutions:

[0023] A digital test method for rocket engine cold pendulum, including digital test methods for the five swing modes of rocket engine circular pendulum, pitch, roll, yaw and rectangle, and simulate the three design states of normal state, limit state and bottom-out state (For example, use the ProE / Mechanism module) to realize the identification of dynamic interference problems in the swing process of the rocket engine and the extraction of dangerous distances.

[0024] The digital test method of the rocket engine cold pendulum of the present invention is as follows:

[0025] (1) Use the motion mechanism assembly module of CAD design software to correctly install the rocket engine and servo mechanism (for example, use the Pro / E motion mechanism assembly module).

[0026] Taking a single engine driven and controlled by two servo mechanisms A and B as an example, the assembly process between the two is described ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a rocket engine cold swinging digital test method comprising the steps that S1, simulation environment initialization parameters are set; S2, a movement mechanism model including a real movement mechanism and state is constructed on the basis of an engine three-dimensional model, and a rocket engine and a servo mechanism are installed in software; S3, the movement equation of the movement mechanism of the rocket engine is defined; and S4, operation of a cold swinging digital test is started according to the movement equation of the engine movement mechanism, and dynamic interference inspection is performed. The complete set of method and technology are complete, the steps are reasonable, operation is standard and items are comprehensive, and rationality of a related structural design scheme is verified in the early design so that the forecast effect of simulation to the object test is fully reflected.

Description

Technical field [0001] The invention relates to the rocket engine test field, in particular to a rocket engine cold pendulum digital test method. Background technique [0002] The aerospace model rocket engine has a complex structure and requires a large number of ground tests. The cold pendulum test of the engine is an important part of structural coordination and must be resolved as early as possible in the development cycle. [0003] At present, the cold pendulum test in the prior art is mainly based on the ground test of the finished product, and there is no necessary means to test at the early stage of engine design to check whether the pipeline, nozzle, main structure, etc. interfere during the engine cold pendulum process, so as to correct the design early Program. At the same time, the existing technology also lacks effective grounding and evaluation of the limit state that cannot be simulated by ground tests. Summary of the invention [0004] The technical problem to be s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01M15/14
Inventor 李莉王哲聂蓉梅皮赞刘敏李澍郭逸婧赵博
Owner BEIJING INST OF ASTRONAUTICAL SYST ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap