Efficient Simulation of Welding Distortion in Large Structures and Its Reduction by Jig Constraints
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Materials Engineering and Performance"
DOI: 10.1007/s11665-017-3000-4
Abstract: Two large construction machinery structures were welded separately with and without jig constraints. The welding distortion of the entire structure was measured by a 3D coordinate measuring system and simulated by elastic FEM using the… read more here.
Keywords: jig constraints; large structures; jig; welding distortion ... See more keywords
Variation simulation and diagnosis considering in-plane/out-of-plane welding distortion
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Naval Architecture and Ocean Engineering"
DOI: 10.1016/j.ijnaoe.2018.10.001
Abstract: Abstract Geometric variation including welding distortion accumulates as many parts are joined together, ultimately affecting the final product. This variation is then subjected to correction, which requires considerable effort, time, and cost. This variation can… read more here.
Keywords: plane; variation simulation; variation; plane variation ... See more keywords
Efficient welding distortion analysis method for large welded structures
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Materials Processing Technology"
DOI: 10.1016/j.jmatprotec.2018.01.043
Abstract: Abstract An efficient approach to predicting the welding angular distortion of large structures by using scalar input variables with no restriction on the mesh size near the welding region is proposed. To transform the input… read more here.
Keywords: distortion analysis; distortion; welding distortion; method ... See more keywords
Prediction and mitigation of out-of-plane welding distortion of a typical block in fabrication of a semi-submersible lifting and disassembly platform
Sign Up to like & getrecommendations! Published in 2021 at "Marine Structures"
DOI: 10.1016/j.marstruc.2021.102964
Abstract: Abstract Out-of-plane welding distortions of block structures during fabrication of offshore structure will significantly influence its dimensional accuracy and production schedule. Taking a B514 block of a semi-submersible lifting and disassembly platform as research object,… read more here.
Keywords: welding distortion; block; fabrication; plane welding ... See more keywords
Welding distortion design formulae of thin-plate panel structure during the assembly process
Sign Up to like & getrecommendations! Published in 2018 at "Ships and Offshore Structures"
DOI: 10.1080/17445302.2018.1475614
Abstract: ABSTRACT Welding of thin-plate panels often results in distortion during the assembly process. The mitigation and control of distortion are critical, and methods such as pre-stressing/heating and pairing the plates have been investigated and used… read more here.
Keywords: distortion; thin plate; welding distortion; assembly process ... See more keywords
Comparison of FEM Predicted and Measured Values of the ITER TF Coil Closure Welding Distortion
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Applied Superconductivity"
DOI: 10.1109/tasc.2020.2965465
Abstract: The ITER reactor relies in magnetic confinement of hot plasma. The main driver for the confinement is played by the Toroidal Field Coils. These magnets are composed by a Winding Pack, made of Nb3Sn superconductors,… read more here.
Keywords: model; toroidal field; closure; welding distortion ... See more keywords
Modified Equivalent Load Method for Welding Distortion Analysis
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Marine Science and Engineering"
DOI: 10.3390/jmse8100794
Abstract: In this study, modified equivalent load method for welding distortion analysis is suggested to improve its accuracy. To avoid the excessive computational time for welding distortion analysis of large welded structures, shell element-based elastic analysis… read more here.
Keywords: load method; analysis; distortion; welding distortion ... See more keywords
A Parametric Analysis on Hull Penetration Position and Frame Spacing Leading to Minimal Welding Distortion
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Ship Production and Design"
DOI: 10.5957/jspd.160007
Abstract: Hull penetration and openings are governed by standards, which ensure the structural integrity of the assembly. However, a number of stiffeners are usually welded to the panel, giving rise to welding residual stresses and distortion.… read more here.
Keywords: penetration; frame spacing; position; distortion ... See more keywords