Stability-based motion planning for a modular morphing wing

Aircraft wing geometry morphing is a technology that has seen recent interest due to demand for aircraft to improve aerodynamic performance for fuel saving. One proposed idea to alter wing geometry is by a modular morphing wing designed through a discretization method and constructed using variable geometry truss mechanisms (VGTM). For each morphing maneuver, there are sixteen possible actuation paths for each VGTM module, and thus offering a three module morphing wing to have a total of 16(to the power of 3) permutations of actuation paths for one morphing maneuver. Focused on longitudinal static stability, critical parameters and aircraft stability theory, this thesis proposes a method to find an optimal actuation path for a designated maneuver iteratively. A case study of a three module morphing wing demonstrated the actuation path selection process. Numerically, different actuation paths had different levels of longitudinal static stability; these paths were drawn in CATIA and were visually verified.

Stability-based motion planning for a modular morphing wing

Aircraft wing geometry morphing is a technology that has seen recent interest due to demand for aircraft to improve aerodynamic performance for fuel saving. One proposed idea to alter wing geometry is by a modular morphing wing designed through a discretization method and constructed using variable geometry truss mechanisms (VGTM). For each morphing maneuver, there are sixteen possible actuation paths for each VGTM module, and thus offering a three module morphing wing to have a total of 16(to the power of 3) permutations of actuation paths for one morphing maneuver. Focused on longitudinal static stability, critical parameters and aircraft stability theory, this thesis proposes a method to find an optimal actuation path for a designated maneuver iteratively. A case study of a three module morphing wing demonstrated the actuation path selection process. Numerically, different actuation paths had different levels of longitudinal static stability; these paths were drawn in CATIA and were visually verified.

CONCEPTUAL DESIGN OF BIRD-LIKE UNMANNED AERIAL VEHICLE FOR PEST BIRD CONTROL

Finch (Lonchura) pest bird becomes a serious problem for rice-plant farmers when entering harvest period because it could make crop yields decreases or even crop failure. There are many method have been done for pest bird control but almost all of those are not effectives. Bird-like unmanned aerial vehicle is proposed as an alternative solution to control pest bird. The aim of this research is to do conceptual design of unmanned aerial vehicle which look like predator bird for pest bird control in farm area. The predator bird which means is black eagle (Ictinaetus Malaiensis) which is one of natural predators of small birds including finch family. Conceptual design of bird-like unmanned aerial vehicle follows general design process of aircraft with some simplification. Method of design adopt to Raymer’s method and sketching of black eagle planform especially wings and tail. The design results an unmanned aerial vehicle look like black eagle with cruise speed is 10m/s and operational altitude 120m above sea level. From aerodynamics analysis shows that bird-like unmanned aerial vehicle which have designed fill lift requirement at angle of attack 3o and longitudinal static stability criteria.