{"product_id":"9781542501910","title":"Boeing SMART Rotor Full-Scale Wind Tunnel Test Data Report NASA\/TM-2016-216048","description":"A full-scale helicopter smart material actuated rotor technology (SMART) rotor test was conducted in the USAF National Full-Scale Aerodynamics Complex 40- by 80-Foot Wind Tunnel at NASA\u003cbr\u003eAmes. The SMART rotor system is a five-bladed MD 902 bearingless rotor with active trailing-edge flaps. The flaps are actuated using piezoelectric actuators. Rotor performance, structural loads, and acoustic data were obtained over a wide range of rotor shaft angles of attack, thrust, and airspeeds.\u003cbr\u003eThe primary test objective was to acquire unique validation data for the high-performance computing analyses developed under the Defense Advanced Research Project Agency (DARPA)\u003cbr\u003eHelicopter Quieting Program (HQP). Other research objectives included quantifying the ability of the on-blade flaps to achieve vibration reduction, rotor smoothing, and performance improvements.\u003cbr\u003eThis data set of rotor performance and structural loads can be used for analytical and experimental comparison studies with other full-scale rotor systems and for analytical validation of computer simulation models. The purpose of this final data report is to document a comprehensive, highquality data set that includes only data points where the flap was actively controlled and each of the five flaps behaved in a similar manner","brand":"CreateSpace Publishing","offers":[{"title":"Default Title","offer_id":47054532837616,"sku":"9781542501910","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9781542501910_p0.jpg?v=1763749422","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781542501910","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}