Method for calculating and evaluating stress of massive standard parts under different loads

A standard component and maximum stress technology, applied in the direction of calculation, force measurement, measuring device, etc., can solve problems such as errors, heavy manual operation workload, and unacceptable project progress, so as to reduce workload, reduce error probability, and speed up stress. The effect of computing speed

Inactive Publication Date: 2010-09-08
CHINA NUCLEAR POWER ENG CO LTD
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When assessing the stress level of a large number of standard components, since the loads of each component are different, especially when the components are subjected to multi-direc...

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
  • Method for calculating and evaluating stress of massive standard parts under different loads
  • Method for calculating and evaluating stress of massive standard parts under different loads
  • Method for calculating and evaluating stress of massive standard parts under different loads

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] Such as figure 2 As shown, a stress calculation and evaluation method for a large number of standard components under different loads includes the following steps:

[0030] (1) Extract the load data of all standard components, prepare load data files, and set the maximum allowable stress value of standard components;

[0031] (2) Modeling standard components;

[0032] (3) Apply a unit load in each load direction of the standard component, and carry out the stress calculation of the unit load in each load direction;

[0033] (4) Read the load data in the load data file, and perform simple algebraic superposition with the stress of the unit load in each load direction according to the following formula to obtain the true stress of all standard components:

[0034] σ x ...

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 relates to a method for calculating and evaluating the stress of standard parts, in particular to the method for calculating and evaluating the stress of massive standard parts under different loads, which is characterized in that: load data files are independently made, which is favorable for conveniently expanding load data and reducing error ratio; actual stress levels of each part can be obtained through simple algebraic superposition only by performing unit load stress analysis for certain times the same as the number of load directions no matter how many parts with the same structure, which greatly saves a computer memory space required by result files at the same time of speeding up the stress analysis; and a maximum stress allowable value of the standard parts is written into a calculation command stream file, so results of the parts can be evaluated at the same time of being obtained, and subsequent evaluation workload is further reduced.

Description

technical field [0001] The invention relates to a stress calculation and evaluation method for standard parts, in particular to a stress calculation and evaluation method for a large number of standard parts under different loads. Background technique [0002] Standard components are widely used in practical engineering, and one characteristic is that these standard components often exist in the form of large quantities. For example, the standard supports and hangers used in nuclear power projects have tens of thousands of standard supports and hangers in each nuclear power plant. Whether the strength of these support and hanger structures is sufficient to withstand the load it can bear directly affects the safety of the entire nuclear power plant. run. This brings up the issue of stress assessment work on these standard components. [0003] At present, the analysis method of the rated load available for standard components is conservatively assessed, but accurate calculat...

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): G06F19/00G01L1/00G01N3/00
Inventor 刘诗华弓振邦刘树斌张双旺
Owner CHINA NUCLEAR POWER ENG CO LTD
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