Aerospace Engineering for Elastic and Inertial - myassignmenthelp

Question: Discuss about theAerospace Engineering for Elastic and Inertial Forces. Answer: Aeroelasticity is a branch of engineering and physics which studies the interaction between the elastic, aerodynamic and inertial forces which occurs the moment an elastic body is exposed to a flowing fluid. Aeroelasticity can be grouped into two categories(Bisplinghoff, 2013): Dynamic static Static Aeroelasticity; Deals with static or steady response of the elastic body to a flowing fluid. Dynamic aeroelastic deals with the typical vibrations of the body response to the flow of fluids. The schematic diagram below shows the interactions of the various forces. Importance of Aeroelasticity The interaction of the three forces which are mentioned above can be the root cause of several phenomena which are undesirable such as: Divergence static aeroelastic Flutter (dynamic aeroelastic) Limit Cycle Oscillation (nonlinear aeroelastic ) Vortex shedding, galloping, buffering unsteady aerodynamic) Divergence static aeroelastic Static divergence in most cases occurs when a lifting surface deflects under the aerodynamic load to increase the amount of the load which is applied. Flutter Fluttering refers to the dynamic instability of an elastic body in a fluid flow which is caused by the positive feedback between the deflections 0f the body and the force which is exerted by the flowing fluid(Halfman, 2014). In aircrafts flutter occurs when the aircraft surfaces mostly the wings interacts with the air flowing past it. The wing will increase the in amplitude until it breaks .For instance flutter which was excited on the US Air force in 1997 September leafing it to crash. References Bisplinghoff, R. L. (2013). Aeroelasticity. London: Courier Corporation,. Halfman, R. L. (2014). An Introduction to the Theory of Aeroelasticity. Texas: Courier Dover Publications.