利用RTM 模擬仿真系統對風機葉片的RTM 充模過程進行了三維模擬, 以優化其成型工藝方案。通過比較和分析葉片根部線注射和側面線注射兩種注射方式的模擬結果, 確定側面線注射為最佳注射方式。通過比較8 個側面注射位置的模擬結果, 優化得到最佳的注射位置、合理的溢料口位置以及選擇溢料口的依據。模擬優化的RTM 工藝方案為: 葉片側邊線注射, 注口位置在距根部500 mm 處, 3 個溢料口分布在葉片根部和尖端。實際制造中采用此方案得到了滿意的產品, 模擬優化RTM 工藝大大降低了復合材料構件的制造成本, 為其他類似構件的合理制備和優化設計提供了參考依據。
關鍵詞: 　復合材料; RTM; 模擬
COMPUTER SIMULATION ANALYSIS AND OPTIMIZATION FOR WIND TURBINE BLADE
SUN Yumin , DUAN Yuexin 3 , L I Dan , L IAN G Zhiyong , ZHAN G Zuoguang
(School of Materials Science and Engineering , Beijing University of Aeronautics and Ast ronautics , Beijing 100083 , China)
Abstract : 　The RTM filling process of a wind turbine blade was simulated in 3D using the RTM simulation system to optimize it s RTM process. The simulation result s of two different injection ways are compared and analyzed to find the optimal injection means. As a result , line injection on the side of the blade is the better way. 8 simulations are carried out for different injection locations on the side to find the optimal injection location and reasonable outlet locations are ensured. Finally , The optimal process is applied successfully to manufacture the blade. Using the sys2 tem of RTM simulation to optimize the process is cost2effective and the optimal process for blade manufacture is of great reference value for other shape2similar component s.
Keywords : 　composites ; RTM; simulation