FlexSys And Aviation Partners Display Morphing Wing
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Winglet specialist Aviation Partners Inc. (API) and joint-venture partner FlexSys are working with an undisclosed customer to retrofit an aircraft with the first commercial morphing wing.
小翼专家Aviation Partners Inc. (API)和合资伙伴FlexSys与一位神秘客户共同合作，首次使用商用变体机翼改造飞机。
The potentially game-changing aerodynamic innovation has wide-ranging implications for performance-boosting retrofits of existing business jets or clean sheet designs, and made its first appearance as an exhibit at the National Business Aviation Association show this year.
潜在的空气动力创新变革对现存公务机或全新设计的性能提升改造有着广泛深远的影响。此创新改造会在本年度国家公务航空协会展上首次亮相。
The wing-morphing “flexfoil” demonstrator illustrated how the airfoil shape could change in flight to boost performance over a wide range of angles of attack, indicated airspeeds and Mach levels. The scale model showed how wing morphing could provide integrated roll control, high lift, cruise optimization, load alleviation and even deicing functions.
变体机翼“flexfoil”样机展示了翼型形状如何在空中发生改变，影响迎角、指示空速和马赫数来提升性能。等比例模型展示了机翼变体能集成横滚控制，高扬程，巡航优化，负载减重，甚至除冰功能。
The new approach to variable-camber wings builds on a FlexSys-developed compliant composite structure that eliminates the mechanical complexity of previous shape-adaptive surfaces. The wing incorporates a one-piece, jointless mechanism that is strong and flexible, in which every section of the structure contributes equally to the shape-morphing while all components share the loads. Each section therefore sees only a small elastic strain with low stress, and the structure can undergo large deformations with high-fatigue life and low maintenance.
可变弯度机翼的制作方法基于FlexSys研发的柔性复合材料结构，它降低了早期形状自适应面的机械复杂性。机翼由一整块无缝机械件制成，坚固且灵活。此结构的每个部分都有助于同样的形状变形，这样所有的组件才能共同承载载荷。因此，每个部分在低应力的情况下承载着小的弹性应变，所以整体结构能够经得起大的变形，具备高疲劳寿命和低维修等特质。
“We are looking for potential partners to license the technology, then certify and commercialize it,” says Joe Clark, API founder and CEO. Clark says wing morphing is the next big disruptive technology, as it enables aerodynamicists to shift the shape of the wing to achieve peak wing performance over the entire mission profile. Clark also says the gapless structure can reduce noise.
API创始人兼CEO ，Joe Clark说“我们正寻找潜在的合作伙伴一同实现此技术的认证许可，然后证明并将其商业化”。他表示机翼变体是未来一种颠覆型的技术，它能够使空气动力学改变机翼的形状，以此通过整体任务剖面来实现机翼的最佳性能。他还表示此无缝结构能够降低噪音。
API and FlexSys agreed to team following initial flight tests of a NASA Gulfstream 3 with a 19-ft.-long morphing flap at the agency’s Armstrong Flight Research Center. The flights tested the ability of the structure to withstand high dynamic pressures and aerodynamic loads up to 11,500 lb. per flap segment at high deflection angles, and supported FlexSys’s projected drag savings from 2% for flap retrofits to 12% for all-new design. The test section replaced the existing flap, ground spoiler and flight spoiler/speedbrake, and was joined to the wing with a flexible transition surface.
API和FlexSys同意组建团队，在阿姆斯特朗飞行研究中心使用配备19英寸长变体襟翼的NASA湾流3尝试首次飞行测试。飞行测试了此结构能够承受高动压，以及在高偏转角情况下，每个襟翼面能够承载11,500磅的气动载荷。并且，全新的设计验证了FlexSys的阻力减少理论，将襟翼阻力从2%减少到12%。此测试用配备有灵活过渡面的机翼替代了现有襟翼，地面扰流板和飞行扰流板/减速板。
FlexSys is currently developing adaptive compliant flap tabs for tests on a U.S. Air Force KC-135 tanker, to evaluate fuel savings and load alleviation, but is exploring wider commercial and business opportunities through the new joint venture. API Chief Operating Officer Hank Thompson says the undisclosed first application is “pretty close to preliminary design review and is the first retrofit application. Early applications are going to be for active load alleviation and aerodynamic performance enhancement.” The first retrofit is expected to focus on a morphing trailing edge that will provide multirole capabilities of active load alleviation, roll control and aileron droop for an improved mission-adaptive profile.
FlexSys当前正在研发自适应柔性襟翼叶片，装配在美国空军KC-135 tanker上用于测试，评估节油和减载的情况，但它正酝酿通过全新合资的形势挖掘更大的商机。API首席运营官Hank Thompson表示未公布的首次应用“临近初步设计审查，并且是首次改造应用。早期的应用目的是为了有效减载和提升空气动力学性能。”首次改造应用预计专注于改变机翼后缘，为改进的任务自适应性剖面提供有效减载，横滚控制，副翼放出等多种功能。
“We are actively soliciting this technology with all the world’s original equipment manufacturers, and they are very interested,” says Thompson. “Our first visit today was from Dassault. We want to license the technology and contract support operations where our engineering teams can help them realize their ideas,” he adds.
他补充“我们正积极向对此技术感兴趣的全球所有原始设备制造厂征求合作意向。我们的首位意向者是达索。我们想将此技术认证许可，签订支持性运营合约，这样我们的工程团队便能够帮助他们实现他们的想法。”
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