## bladed开发计划与进展 ### turbine challenges - growth - challenge in structures aerodynamics stabilities - 固定式 - 行架式 - floating - 计算数增加,时间增长、工况复杂 - 浮式平台多种形式 ### bladed4 100+ industrial customers long flexible blades ### deep stall 叶片的高频振动,instability SIV-1 stall induced vibration 攻角在-150-150,也会引起vibration SIV-2 ,存在两个问题 :1没有气动数据,没有unsteady 模型 IAG dynamic stall model IAG在Cl Cd Cm上都更准确 13%,21%, 24%厚度 IEA 15MW DLC 6.3 BEM + no DS BEM + BL model 都出现叶片抖动 BEM + IAG model 不抖动,但是也出现停顿 ### bladed5 flexible turbine assembly tree superelement () model imbalance - add 模块之间的offset better support of early blade design process independent meshes between aerodynamic and structure 基于api前处理和后处理 ### bladed 5 new features - yaw bear model - add sensors to simulation