Abstract
An enhanced integrated aerodynamic load/dynamic optimization procedure is developed to minimize vibratory root shears and moments. The optimization problem is formulated with 4/rev vertical and 3/rev inplane shears at the blade root as objective functions and constraints are imposed on 3/rev radial shear, 3/rev flapping and torsional moments and 4/rev lagging moment. Constraints are also imposed on blade natural frequencies, weight, autorotational inertia, centrifugal stress and rotor thrust. The 'Global Criteria Approach' is used for formulating the multi-objective optimization. Design variables include spanwise distributions of blade bending stiffnesses, torsional stiffness, nonstructural mass, chord, radius of gyration and blade taper ratio. The program CAMRAD is coupled with an optimizer, which consists of the program CONMIN and an approximate analysis, to obtain optimum designs. The optimization procedure is applied to an advanced rotor as a reference design.
| Original language | English (US) |
|---|---|
| Title of host publication | Annual Forum Proceedings - American Helicopter Society |
| Publisher | Publ by American Helicopter Soc |
| Pages | 459-468 |
| Number of pages | 10 |
| Volume | 1 |
| State | Published - May 1990 |
| Externally published | Yes |
| Event | 46th Annual Forum Proceedings of the American Helicopter Society. Part 1 (of 2) - Washington, DC, USA Duration: May 21 1990 → May 23 1990 |
Other
| Other | 46th Annual Forum Proceedings of the American Helicopter Society. Part 1 (of 2) |
|---|---|
| City | Washington, DC, USA |
| Period | 5/21/90 → 5/23/90 |
ASJC Scopus subject areas
- Aerospace Engineering
- Transportation