Accession Number : ADA631893


Title :   A Compliant Mechanism Synthesis Theory for Fostering Innovation of Micro Air Vehicles


Descriptive Note : Final rept. Apr 2012-Mar 2016


Corporate Author : OHIO STATE UNIV COLUMBUS


Personal Author(s) : Su, Haijun


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a631893.pdf


Report Date : 01 Apr 2016


Pagination or Media Count : 39


Abstract : In this project, we have developed a compliant mechanism synthesis theory that incorporate a general framework for determining pseudo-rigid-body models, type synthesis algorithms (determining mechanism topology for a specific task) and kinetostatic analysis/synthesis. This theory has been implemented into computer codes with a graphical user interface. It has been applied to solve several structure design problems including design optimization of compliant transmission mechanism for flapping wing MAVs, a bistable buckling beam design and a robotic finger actuated using shape memory alloy actuators. For instance, we have developed a parameter optimization framework for determining the pseudo-rigid-body (PRB) model of cantilever beams. A novel concept of PRB matrix has been proposed to describe the general topology of an arbitrary PRB model. Based upon this synthesis theory, we have shown that compliant joints can significantly reduce the power consumption in flapping wing MAVs if they are designed to enhance the down stroke flapping motion.


Descriptors :   *REMOTELY PILOTED VEHICLES , ACTUATORS , AERODYNAMIC LOADING , ALGORITHMS , BISTABLE DEVICES , BUCKLING , CANTILEVER BEAMS , COMPUTER PROGRAMS , DIRECT CURRENT , ELASTIC PROPERTIES , ELECTRIC MOTORS , ENERGY CONSUMPTION , GRAPHICAL USER INTERFACE , HIGH VOLTAGE , KINEMATICS , OPTIMIZATION , PIEZOELECTRIC MATERIALS , ROBOTICS , ROTARY WINGS , ROTATION , SHAPE MEMORY ALLOYS , TOPOLOGY , TRANSMISSIONS(MECHANICAL)


Subject Categories : Pilotless Aircraft
      Electrical and Electronic Equipment
      Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE