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NASA SBIR award for vibration reduction system

TSI and the Department of Aerospace Engineering at the University of Maryland received a Phase I SBIR award on 17 November 2006 from the NASA SBIR program office to develop a high-performance, on-blade rotor vibration reduction system. Project leader, Dr. Curt Kothera and his colleagues are working to develop and demonstrate pneumatic devices to actuate a trailing edge flap device for management of rotorcraft vibration. The TSI patent pending pneumatic actuators are constructed of passive materials that are very mass efficient and low cost, while maintaining adequate force, stroke, and bandwidth. A lightweight mechanism accompanies the actuators, running along the span, to transfer and tailor the mechanical work from the actuators to the span station of the flap. The Phase I SBIR research activities will focus on properly sizing and scaling the actuators and mechanism for the desired response. TSI will construct a prototype device that will demonstrate the feasibility of the concept in rotating spin tests at full-scale loading conditions. Due to the scalability of the pneumatic actuators, the TSI pneumatic system will be applicable to a wide range of vehicles ranging from small unmanned vehicles to large, full-scale aircraft.