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結構

結構

LS-DYNA 問題求解

    • tp6u04t61113
      Subscriber

      https://youtu.be/mop7RXJ1GuU?si=7msxDKCcWatfocuh

      目前正在使用LS-DYNA進行自行車的落摔衝擊測試,遇到了一些問題,導致無法求解 ,以上網址是我參考的設置方式。

      這些錯誤碼,可能導致我求解無法成功。

    • Ram Gopisetti
      Ansys Employee

      Hi, 

      A lot is happening in your model, essentially pointing out that the model is not correctly configured. 

      To get some clues about your first error, please check the d3hsp and/or the messages files, which are located in the solver directory. These files provide us with details of specific errors that occurred in your model, allowing us to address them accordingly. 

      For the second error, check if you are applying multiple boundary or load conditions to the same set of nodes, or in situations where the displacement of that node is given by two sets of kinematic equations, which are not necessarily compatible. One node can not belong to more than one rigid zone.

      For the third error, in LS-Dyna we don't support higher order elements up until a few versions down; however, check if you find Pyramids, Wedges, etc in your mesh, if you find them, correct them by adjusting the local mesh size, etc. 

      Cheers, Ram 

       

      [Google Translate - Chinese traditional]

      您好,
      
      您的模型中出現了許多問題,這主要表示模型配置不正確。
      
      為了找到第一個錯誤的線索,請檢查位於求解器目錄中的 d3hsp 和/或訊息檔案。這些文件提供了模型中發生的具體錯誤的詳細信息,以便我們可以進行相應的處理。
      
      對於第二個錯誤,請檢查您是否對同一組節點施加了多個邊界或載荷條件,或者該節點的位移由兩組運動學方程式給出,而這兩組方程式不一定相容。一個節點不能屬於多個剛性區域。
      
      對於第三個錯誤,在 LS-Dyna 中,直到幾個版本之前,我們才支援高階單元;但是,請檢查您的網格中是否包含金字塔、楔形等元素,如果發現,請透過調整局部網格尺寸等方式進行修正。
      
      謝謝,Ram
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