http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109186836-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F30-23 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01L5-0047 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F30-23 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01L5-00 |
| filingDate | 2018-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109186836-B |
| titleOfInvention | Method for testing residual stress of welding joint based on three-dimensional optical measurement technology and contour method |
| abstract | A method for testing the residual stress of a welding joint based on a three-dimensional optical measurement technology and a profile method, and pretreatment before welding; after welding, cutting a welding test plate perpendicular to the middle section of a welding seam, and carrying out XJTU-OM shooting on the cut test plate to obtain calculated measurement point cloud data; and marks the two cut planes as cut planes A, B; the measured point cloud data is subjected to preliminary denoising fitting by adopting Geomagic qualify to extrude the width of a scanning data band, so as to obtain a primary denoising point cloud; denoising the primary denoising point cloud obtained in the third step through MATLAB according to the grid size mean value, and interpolating contour data between points to obtain a fitting contour of the cutting surface A, B; fitting the profiles of the cutting surfaces A measured by the XJTU-OM for mirroring, then carrying out point-by-point averaging on the profiles of the two cutting surfaces A, B, and generating a model with displacement deviation through MATLAB for final elastic calculation; stress calculation and analysis show that the method has the advantages of important theoretical and engineering values for testing the residual stress of the welding part. |
| priorityDate | 2018-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 18.