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Keywords: aerodynamics
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Journal Articles
Article Type: Research Papers
J. Mech. Des. January 2012, 134(1): 011009.
Published Online: January 5, 2012
... two ideas leads to a novel class of airfoil structures (active aeroelastic, compliant airfoils) which enable operation at and beyond aeroelastic instabilities. Such structures need a new modeling approach, which includes nonlinearities of structural and aerodynamic kinds. In this paper, a non linear...
Journal Articles
Article Type: Research Papers
J. Mech. Des. November 2010, 132(11): 111012.
Published Online: November 16, 2010
... provide a fighter aircraft with a variable engine inlet capability. The reconfigurable rotor blade program demonstrated the ability of highly robust, controlled 55-Nitinol tube actuators to twist a rotor blade in a spin stand test to optimize rotor aerodynamic characteristics. The variable geometry...
Journal Articles
Article Type: Research Papers
J. Mech. Des. May 2010, 132(5): 051006.
Published Online: May 3, 2010
...P. S. Sreetharan; R. J. Wood Flapping-wing robotic platforms based on Dipteran insects have demonstrated lift to weight ratios greater than 1, but research into regulating the aerodynamic forces produced by their wings has largely focused on active wing trajectory control. In an alternate approach...
Journal Articles
Article Type: Research Papers
J. Mech. Des. September 2009, 131(9): 091006.
Published Online: August 18, 2009
... in this study is experimentally validated. Given the presence of the transmission system with transmission ratio R , the aerodynamic forces and the forces related to the extrados reaction, as presented by the active element and the bias spring, will be decreased by a factor of R , while the stroke...
Journal Articles
Article Type: Research Papers
J. Mech. Des. April 2007, 129(4): 381–389.
Published Online: April 28, 2006
...K. Kurien Issac; Sunil K. Agrawal In this paper, we investigate the effect of using springs and wing motions to minimize the power required by a mechanical bird to fly. Inertia forces as well as aerodynamic forces on the wing are included. The design takes into account different flight speeds...
Journal Articles
Article Type: Research Papers
J. Mech. Des. July 2006, 128(4): 864–873.
Published Online: January 18, 2006
...Apurva Kumar; Andy J. Keane; Prasanth B. Nair; Shahrokh Shahpar This paper is concerned with robust aerodynamic design of compressor blades against erosion. The proposed approach combines a multiobjective genetic algorithm with geometry modeling methods, high-fidelity computational fluid dynamics...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. July 2005, 127(4): 817–824.
Published Online: June 27, 2005
... by the Mechanisms and Robotics Committee for publication in the JOURNAL OF MECHANICAL DESIGN . Manuscript received September 8, 2003; revised May 26, 2004. Associate Editor: G. R. Pennock. 08 September 2003 26 May 2004 27 06 2005 micromechanical devices aircraft kinematics aerodynamics...
Journal Articles
Article Type: Technical Briefs
J. Mech. Des. January 2006, 128(1): 137–141.
Published Online: March 30, 2005
... is a parameter that strongly influences the inlet air mass of the diesel engine. This study deals with radial bearings and illustrates the advantages and the limits of the aerodynamic bearing application. First, the computing concerns the determination of the bearing load by resolving the Reynolds equation. So...
Journal Articles
Article Type: Technical Briefs
J. Mech. Des. July 2005, 127(4): 841–844.
Published Online: February 25, 2005
... flying-bird prototypes. 27 05 2004 25 02 2005 optimisation design aerodynamics kinematics In the field of flying machines, a number of successful research have been conducted on fixed-wing vehicles. However, as one shrinks the size to micro flying machines, flapping-wing...
Journal Articles
Article Type: Technical Papers
J. Mech. Des. July 2005, 127(4): 809–816.
Published Online: October 4, 2004
... similar to an insect thorax which stores part of the kinetic energy of the wing as elastic potential energy in the thorax during a flapping cycle; (ii) inclusion of aerodynamic wing models using blade element theory and inertia of the mechanism using rigid body modeling techniques; (iii) optimization...