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    题名: 不良天候下之飛機性能參數化研究
    其它题名: A Study of Aircraft Performance Parameter under Adverse Weather Conditions
    作者: 宛同;王正民
    贡献者: 淡江大學航空太空工程學系
    关键词: 低空風切;亂流;大雨;飛機積冰;飛行安全;飛機性能Low level windshear;Turbulence;Heavy rain;Ice accretion;Aviation safety;Aircraft performance
    日期: 2007-11
    上传时间: 2013-03-22 19:37:25 (UTC+8)
    摘要: 某些天氣現象會對飛行安全造成相當大的危害,例如低空風切、亂流、大雨和飛機積冰等現象。本研究的目的是欲藉由低空風切危害參數F參數為媒介,對在不良天候下飛行的飛機,其性能將會出現何種程度的衰減進行瞭解。本文將先建立三維低空風切風場及三維F參數,然後將其所計算出來結果與代表亂流的T參數相加。在大雨和飛機積冰的部分,則採用吾人前所建立的計算流力法解析飛機的空氣動力係數,將其衰減的飛機性能計算出,並換算出相對應的F參數值。最後再將飛機可能遭遇的惡劣天氣現象之等效F參數和T參數相加成為FT參數,並應用最新發展的FW參數,以求得在同時面對多種惡劣天氣現象下,飛機所受到的影響總合,並進而探討多種惡劣天氣同時存在時,單獨天氣現象對飛機所造成影響之比重。
    The purpose of this research is to find out, by using existing low level windshear F-factor as the medium, the degrees of performance degradation for aircraft flying under different adverse weather conditions. First set up the 3-D F-factor, then combined with turbulence T-factor developed earlier. Secondly, take the aircraft performance calculated from heavy rain and ice accretion by existing CFD techniques; convert it to an equivalent F-factor value. Finally, a new FW-factor has been derived from different F-factor and T-factor values for the four adverse weather conditions that the aircraft might face. It is believed that this FW-factor represents a measuring weighting parameter for each adverse weather condition. Through the combining efforts in flight dynamics, aerodynamics, performance parameter developments, this study represents a first try in quantifying different adverse weather influences on aircraft performance degradation.
    關聯: 2007中華民國航空太空學會第四十九屆航太學術研討會論文集,6頁
    显示于类别:[航空太空工程學系暨研究所] 會議論文

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