本文的目的在探討一直昇機的彈性葉片與非穩態空氣動力環境耦合在一起時, 彈性葉片上的空氣動力在不同的尾流振動頻率下之變化及分析。結果顯示我們可以瞭解升力由於誘導尾流頻率和葉片拍撲頻率、升力的激發頻率、及葉片結構頻率共振, 而造成升力減少。 The frequency response of a helicopter rotor aeroelastic system in vertical and forward flight will be studied by a three-dimensional unsteady wake model and coupled with a 4-elastic-bladed vibrating rotor. Results show that the lift was dropped for each resonant area, includes wake to blade flapping, wake to lift spike, and wake to blade structure.
