最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級(jí)檢索
薄壁GH3536尾噴管組焊變形控制工藝優(yōu)化仿真
作者:
作者單位:

1.太原科技大學(xué) 材料科學(xué)與工程學(xué)院;2.北京航空航天大學(xué) 機(jī)械工程及自動(dòng)化學(xué)院;3.中國(guó)航發(fā)貴州黎陽(yáng)航空動(dòng)力有 限公司技術(shù)中心

作者簡(jiǎn)介:

通訊作者:

中圖分類(lèi)號(hào):

TG457

基金項(xiàng)目:

國(guó)家重點(diǎn)研發(fā)計(jì)劃(2018YFA0707305)；山西省科技重大專(zhuān)項(xiàng)(202101120401008)；山西省重點(diǎn)研發(fā)計(jì)劃(202102050201001)；臨汾市重點(diǎn)研發(fā)計(jì)劃(2202)；山西省高等學(xué)?？萍紕?chuàng)新項(xiàng)目(2022L628)


Optimal Simulation of Welding Deformation Control Process for Thin-wall GH3536 Tail Nozzle
Author:
Affiliation:

1.School of Material Science and Engineering,Taiyuan University of Science and Technology;2.School of Mechanical Engineering and Automation,Beihang University;3.AECC Guizhou Liyang Aero Engine Co,Ltd Technology Center

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問(wèn)統(tǒng)計(jì)
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評(píng)論
    摘要:

    基于SYSWELD仿真平臺(tái)，利用熱-彈-塑性有限元法和固有應(yīng)變法進(jìn)行仿真優(yōu)化，研究焊接工藝對(duì)薄壁GH3536尾噴管組件焊接變形的影響。首先進(jìn)行平板對(duì)接工藝試驗(yàn)和熱-彈-塑性有限元仿真計(jì)算，對(duì)焊接熱源模型進(jìn)行校核，獲得不同焊接工藝下典型接頭的平均固有應(yīng)變和修正的材料熱膨脹系數(shù)。建立全尺寸三維尾噴管組件的焊接有限元模型，基于固有應(yīng)變理論的彈性有限元方法，利用平板對(duì)接獲得的材料熱膨脹系數(shù)，計(jì)算焊接工藝參數(shù)與焊接約束對(duì)尾噴管組件焊接變形的影響。結(jié)果表明，焊接電流為40A時(shí)，薄壁GH3536平板對(duì)接焊接頭固有應(yīng)變值最小為0.00660mm，此時(shí)尾噴管焊后變形也最小，為推薦使用的最優(yōu)焊接工藝。在焊縫、進(jìn)氣口和排氣口同時(shí)進(jìn)行夾持，尾噴管焊后變形最小，整體變形1.39mm。

    Abstract:

    Based on SYSWELD simulation software, a computational method combining the thermal elastic plastic finite element method(FEM) and the inherent strain method FEM is used to study the influence of the welding process on welding defor-mation of the thin-walled GH3536 tail nozzle assembly. Firstly, the plate docking process test and thermal elastic plastic FEM calculation are carried out to check the welding heat source model, and the average inherent strain value of the joint and the modified thermal expansion coefficient of the material under different welding processes are obtained. Secondly, the finite element model of full-size three-dimensional tail nozzle welding is established. Based on the elastic FEM of the inher-ent strain theory, the influence of welding process parameters and welding constraints on the welding deformation of the tail nozzle assembly was calculated by using the thermal expansion coefficient of the material obtained by plate docking. The results show that when the welding current is 40 A, the minimum inherent strain value of the thin-walled GH3536 plate butt welding joint is 0.00660 mm, and the deformation of the nozzle after welding is also the smallest, which is the recommended optimal welding process. When the weld, air inlet and exhaust port are clamped at the same time, the deformation of the nozzle is the smallest after welding, and the overall deformation is 1.39 mm.

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

李巖,李艷彪,劉 琪,張艷峰,田孟良,吳志生.薄壁GH3536尾噴管組焊變形控制工藝優(yōu)化仿真[J].稀有金屬材料與工程,2023,52(8):2775~2782.[Li Yan, Li Yanbiao, Liu Qi, Zhang Yanfeng, Tian Mengliang, Wu Zhisheng. Optimal Simulation of Welding Deformation Control Process for Thin-wall GH3536 Tail Nozzle[J]. Rare Metal Materials and Engineering,2023,52(8):2775~2782.]
DOI：10.12442/j. issn.1002-185X.20230082

復(fù)制
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2023-02-19
  • 最后修改日期:2023-03-15
  • 錄用日期:2023-03-20
  • 在線發(fā)布日期: 2023-08-28
  • 出版日期: 2023-08-24