大型铸锻件
大型鑄鍛件
대형주단건
HEAVY CASTING AND FORGING
2015年
5期
12-15,31
,共5页
焊接装配%温度场%焊接应力
銲接裝配%溫度場%銲接應力
한접장배%온도장%한접응력
welding assembly%temperature field%welding stress
针对大型工件的焊接装配，建立了焊接装配过程壳-固耦合有限元模型，考虑了材料物理性能参数与温度的关系。利用SYSWELD软件建立并校核了焊接仿真热源，在考虑焊接顺序和工艺约束的情况下进行焊接装配有限元数值模拟，分析了装配顺序对工件焊接应力应变的影响，并与实际结果进行了对比分析，吻合度较好。
針對大型工件的銲接裝配，建立瞭銲接裝配過程殼-固耦閤有限元模型，攷慮瞭材料物理性能參數與溫度的關繫。利用SYSWELD軟件建立併校覈瞭銲接倣真熱源，在攷慮銲接順序和工藝約束的情況下進行銲接裝配有限元數值模擬，分析瞭裝配順序對工件銲接應力應變的影響，併與實際結果進行瞭對比分析，吻閤度較好。
침대대형공건적한접장배，건립료한접장배과정각-고우합유한원모형，고필료재료물이성능삼수여온도적관계。이용SYSWELD연건건립병교핵료한접방진열원，재고필한접순서화공예약속적정황하진행한접장배유한원수치모의，분석료장배순서대공건한접응력응변적영향，병여실제결과진행료대비분석，문합도교호。
The Shell-Solid coupling finite element model during welding assembly process for heavy workpiece has been built, which considered the relationship between the physical property parameter of material and the temperature. By adopting SYSWELD software, the simulated heat source for welding has been built and checked.Under the condi-tion of the welding sequence and the process constraint, the finite element simulation for welding assembly has been carried out, and the influence of assembly sequence on the welding stress and strain of workpiece has been analyzed. Meanwhile, the comparative analysis between simulated results and actual results has been performed, and the results were consistent with each other perfectly.
