Unlock instant, AI-driven research and patent intelligence for your innovation.

Reliability analysis system and method for spaceflight composite laminated plate

A technology of aerospace composite material and analysis system, which is applied in the field of reliability analysis system of aerospace composite material laminate, can solve the problems of unstable structural performance and structural failure of composite materials.

Pending Publication Date: 2021-01-22
INNOVATION ACAD FOR MICROSATELLITES OF CAS +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a reliability analysis system and method for aerospace composite material laminates to solve the problem that the performance of existing composite material structures is unstable and prone to structural failure in actual use

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
  • Reliability analysis system and method for spaceflight composite laminated plate
  • Reliability analysis system and method for spaceflight composite laminated plate
  • Reliability analysis system and method for spaceflight composite laminated plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] This embodiment provides a reliability analysis system for aerospace composite laminates, such as figure 1As shown, the aerospace composite laminate reliability analysis system includes a parameter setting module, a deterministic performance analysis module, a parameter randomization module, an analysis setting module and a reliability analysis module, wherein: the parameter setting module is Configured to define the mechanical performance parameters of the single-layer board, and send the mechanical performance parameters of the single-layer board to the parameter randomization module; the deterministic performance analysis module is configured to calculate the in-plane engineering elastic constant of the laminated board blanket curve, and send the blanket curve of the in-plane engineering elastic constant of the laminate to the reliability analysis module; the parameter randomization module is configured to randomize the mechanical performance parameters of the single-...

Embodiment 2

[0089] This embodiment provides a reliability analysis method for aerospace composite laminates. The reliability analysis method for aerospace composite laminates includes: a parameter setting module defines the mechanical performance parameters of a single-layer board, and sets the single-layer board The mechanical performance parameters of the laminate are sent to the parameter randomization module; the deterministic performance analysis module calculates the blanket curve of the engineering elastic constant in the laminate plane, and sends the blanket curve of the engineering elastic constant in the laminate plane to the reliability analysis module The parameter randomization module randomizes the mechanical performance parameters of the single-layer board to generate basic input random variables, and sends the basic input random variables to the reliability analysis module; the analysis setting module sets Determine and select the reliability analysis method and sampling st...

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 reliability analysis system and method for a spaceflight composite laminated plate, and the method comprises the steps that a parameter setting module defines the mechanical performance parameters of a single-layer plate, a deterministic performance analysis module calculates a blanket curve of an engineering elastic constant in the laminated plate, and a parameter randomization module carries out the randomization setting of the mechanical performance parameters of the single-layer plate; a basic input random variable is generated, and an analysis setting module setsand selects a reliability analysis method and a sampling strategy; the reliability analysis module analyzes the specific source of the uncertainty of the engineering elastic constant in the laminatedboard according to the blanket curve of the engineering elastic constant in the laminated board, the selected reliability analysis method and the sampling strategy; and an importance measurement indexof each basic input random variable to the variance of the output response quantity is calculated by adopting a variance-based method, and an input variable which has the greatest influence on the variability of the considered engineering elastic constant in the laminated board is determined according to an importance measurement index result so as to determine an optimal method for reducing thevariability of the input variable.

Description

technical field [0001] The invention relates to the technical field of aerospace composite materials, in particular to a reliability analysis system and method for laminated boards of aerospace composite materials. Background technique [0002] At present, composite materials are widely used in the design of high-end engineering structures, especially in the field of spacecraft structure design. As a lightweight high-performance material, composite materials have become one of the important structural materials of spacecraft structures. The application of composite materials plays a vital role in the lightweight, miniaturization and high performance of spacecraft structures. The amount of composite materials has become an important symbol of the advanced nature of spacecraft. Spacecraft is a high-tech comprehensive experimental field, and the application of composite material structures on spacecraft represents the status quo of the development level of spacecraft composite...

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): G06F30/15G06F30/20G06F119/02G06F113/26G06F119/14
CPCG06F30/15G06F30/20G06F2119/02G06F2113/26G06F2119/14
Inventor 田龙飞高爽刘国华刘洋刘经斌张文心周世龙李宗德元晓川
Owner INNOVATION ACAD FOR MICROSATELLITES OF CAS