Steady-state computation of constant rotational rate dynamic stability derivatives

Linear Frequency Domain and Harmonic Balance Predictions of Dynamic Derivatives

“…Dynamic derivatives influence the aerodynamic damping of aircraft motions and are used to evaluate the longitudinal short period, lateral pure roll and lateral Dutch roll properties of the aircraft. 3 Aerodynamic forces and moments can be estimated via analytical, semi-empirical, computational fluid dynamics or experimental methods. A combination of data sheets, linear aerodynamic theory, and empirical relations have met with success due to their simplicity, but their generality is limited.…”

Computing Stability Derivatives and Their Gradients for Aerodynamic Shape Optimization

“…Weinacht [17] also introduces the idea of using a steady looping motion to get the q derivatives. This motion is suitable for use with aircraft and has been demonstrated in that context by several authors [13,14,16]. However, as discussed in Section II, methods based on this approach do not lend themselves to optimization.…”

“…These approaches have also been well explored. Park et al [13] extended their study on using AD to compute stability derivatives to include the dynamic derivatives. Limache and Cliff [14] demonstrated the use of adjoint methods for the computation of dynamic stability derivatives for a two-dimensional case.…”

Surrogate Model of Aerodynamic Model toward Efficient Digital Flight

“…Such an example, in European region they have the collaboration project called "Simulating Aircraft Stability and Control Characteristics" (SimSAC) under the European Commission 6th Framework Program [2][3][4][5][6][7]. Moreover in the United States, NASA Langley Research Center focuses on the dynamic stability and steady-state computation in the conceptual design stage [8] and was established a simulation code called "Kestrel" of the CREATE-AV [7]. In Japan, the existing project was currently run also required the dynamic stability analysis for optimum condition, system identification and also aerodynamic shape optimization including stability and controllability [7].…”