Sounds generated by new vehicles are important for brand identification and product differentiation. Consequently automotive manufacturers are interested in how to turn customer preferences of sounds into achievable engineering targets; sound quality engineering. One tool within this process is paired comparison testing, where a jury is asked to choose between pairs of sounds given a particular...

This paper demonstrates the application of a numerical continuation method to dynamic piecewise aeroelastic systems. The aeroelastic system is initially converted into a state space form, and then into a set of equations which solve the system as the motion moves between different linear zones in a freeplay motion. Once an initial condition is found that satisfies these sets of equations a cont...

Time integration is commonly used to obtain accurate system responses, such as the limit cycle oscillations (LCOs) for an aeroelastic with freeplay. However, integrations that start various initial conditions (I.C.s) are usually studied case by case, so only a few states can possibly be focused on. This paper proposes state space iterating (SSI) scheme find LCO solutions using time another meth...

Establishing the aeroelastic characteristic of all-movable fins with freeplay nonlinearities is one most common problems in design supersonic flight vehicles. In this context, study provided novel points view on nonlinear characteristics an fin its root. The unsteady aerodynamic model that was employed uses second-order piston theory considering thickness effects. For a system multiple nonlinea...