A Fast Approach for Wing Jig-shape Design
-
摘要: 民用飞机的机翼设计都是以巡航性能作为设计点。由于飞机静气动弹性效应,大展弦比后掠机翼飞机巡航飞行时,机翼的气动特性会因机翼产生静变形而改变。为使飞机巡航飞行时机翼巡航性能达到设计指标,需要对机翼进行型架设计。本文中提出一种机翼型架外形的设计方法,首先应用气动力修正技术,对计算效率高但精度不足的偶极子格网法进行修正,采用完全解耦方法获得机翼初始型架外形,再通过耦合的迭代计算收敛到目标机翼型架外形,使其巡航状态飞行性能达到设计值。此方法不仅收敛速度快,而且其结果具有较高精度。Abstract: Cruise performance is the design point in civil aircraft wing design.The wing's aerodynamic characteristics changes due to its static deformation because of the aircraft static aeroelastic effects when it is in cruise condition.It is important to do research on wing jig-shape design to make the aircraft's cruise performance meet its design criterion.A fast approach to the wing jig-shape aeroelastic design problem was presented in this paper.At first,aerodynamic correction factor techniques was applied to doublet-lattice method and acquired a good computational efficiency for improving the accuracy of aerodynamic force.The initial jig-shape of the wing was obtained through a fully decoupled method,and the designed jig-shape was got by coupling iterative calculation.This approach not only convergences fast,but also gets results with high accuracy.
-
Key words:
- jig-shape design /
- static aeroelasticity /
- swept wings /
- pressure correction
-
[1] 詹浩，程诗信，朱军．考虑气动弹性影响的机翼复杂气动外形设计研究[J].西北工业大学学报，2009，27(1):100～104 [2] 詹浩，华俊，张仲寅．考虑气动弹性变形影响的跨声速机翼设计方法研究[J].空气动力学学报，1999，17(3):327～332 [3] 梁强，杨永年．复杂流场的非定常气动力计算以及气动弹性研究[D].西安:西北工业大学，2003 [4] 徐敏，安效民，陈士橹．一种 CFD/CSD 耦合计算方法[J].航空学报，2006，27(1):33～37 [5] Aly S，Ogot M，Pelz R B，et al．Jig-shape static aeroelastic wing design problem:a decoupled approach[J]. Journal of Air-craft，2002，39(6):1061～1066 [6] Aly S，et al．A Decoupled Stochastic Approach to the Jig-Shape Aeroelastic Wing DesignProblem[R].36th AerospaceSciences Meeting ＆ Exhibit，January 12-15，1998 [7] Giesing J P，Kalman T P，Rodden W P．Correction Factor Techniques for Improving Aerodynamic Prediction Methods[R].NASA CR-144967，1976 [8] Carol D．Wieseman，Methodology for Matching Experimen-tal and Analytical Aerodynamic Data [R].NASA-TM-100592，1988 [9] Giesing J P，Kalman T P，Rodden W P．Correction Factor Techniques for Improving Aerodynamic Prediction Methods[R].NASA CR-144967，1976 [10] Rodden W P，John son E H．MSC．Nastran Aeroelastic Analy-sis Users Guide V68[M].Los Angeles，CA:MSC Software Cor-poration，1994 [11] Carol D．Wieseman，Methodology for Matching Experimen-tal and Analytical Aerodynamic Data [R．NASA-TM-100592，1988 [12] 严德，杨超，万志强．应用气动力修正技术的静气动弹性发散计算[J].北京航空航天大学学报，2007，33(10):1146～1149 -
点击查看大图
计量
- 文章访问数: 175
- HTML全文浏览量: 27
- PDF下载量: 11
- 被引次数: 0
下载:
