彈藥庫意外爆炸數值模擬於風險管理之可行性評估與探討

Assessment of Ammunition Depots Management Risk

賴信宏
H. H. Lai

雲林科技大學

摘要

台灣地狹人稠，都市化發展迅速，建築區域不斷往偏遠地區拓展，因此彈藥庫的管理與安全便成為人們關注的問題。彈藥庫經過長時間使用後已顯老舊，若管理不當會造成內部爆炸的意外爆炸，爆炸後的洩漏壓與結構物的開口、牆厚有著密切關係，為了降低內爆風險，需設計新的或強化現有的彈藥庫來囤儲作戰所需彈藥，但原有的彈藥庫設計標準相對保守，侷限了土地開發與彈藥庫設計標準，因此為了降低彈藥庫的囤儲風險，透過提升管理機制，以設計新建或修改現有彈藥庫，使得管理更簡單並提升安全。本研究結合彈藥庫縮尺模型實驗與電腦模擬ANSYS/LS-DYNA軟體流固耦合 (Arbitrary Lagrangian-Eulerian,ALE)算法，將結果與UFC3-340-02規範進行比較，驗證其適用性，結果顯示電腦模擬可以驗證彈藥庫內爆相關數據與規範是相近的，因此以電腦模擬彈藥庫最佳化設計後結果，可以給設計或管理單位當作新建或補強彈藥庫的參考。

關鍵字：內部爆炸、意外爆炸、洩漏壓力、任意拉格朗日–歐拉（ALE）。

ABSTRACT

Taiwan is narrow and densely populated, urbanization develops rapidly, and construction areas continue to expand to remote areas. Therefore, the management and safety of ammunition depots have become issues of concern. The ammunition depot has become old after a long time of use. If it is not properly managed, it will cause an accidental explosion of internal explosion. The leakage pressure after the explosion is closely related to the opening of the structure and the thickness of the wall. In order to reduce the risk of implosion, it is necessary to design a new one. Or strengthen the existing ammunition depot to store the ammunition needed for combat, but the original ammunition depot design standards are relatively conservative, which limits land development and ammunition depot design standards. Create new or modify existing ammunition depots by design, making management easier and improving safety. This study combines the experiments of the ammunition depot scale model and the computer simulation of the ANSYS/LS-DYNA soft-body fluid-structure interaction (Arbitrary Lagrangian-Eulerian, ALE) algorithm. The results are compared with the UFC3-340-02 specification to verify its applicability. The results show that the computer The simulation can verify that the data related to the implosion of the ammunition depot is like the specification. Therefore, the results of optimizing the design of the ammunition depot by computer simulation can be used as a reference for the design or management unit to build or strengthen the ammunition depot.

KEYWORDS: Internal Explosion; Accidental Explosion; Leak Pressure; Arbitrary Lagrangian–Eulerian (ALE)