Application of GRASP to nonlinear analysis of a cantilever beamThe General Rotorcraft Aeromechanical Stability Program (GRASP) was developed to analyze the steady-state and linearized dynamic behavior of rotorcraft in hovering and axial flight conditions. Because of the nature of problems GRASP was created to solve, the geometrically nonlinear behavior of beams is one area in which the program must perform well in order to be of any value. Numerical results obtained from GRASP are compared to both static and dynamic experimental data obtained for a cantilever beam undergoing large displacements and rotations caused by deformation. The correlation is excellent in all cases.
Document ID
19870046475
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hinnant, Howard E. (NASA Ames Research Center; U.S. Army, Aeroflightdynamics Directorate, Moffett Field CA, United States)
Hodges, Dewey H. (Georgia Institute of Technology Atlanta, United States)