Bifurcation-based shimmy analysis of landing gears using flexible multibody models... The resulting quasi-2-parameter bifurcation diagrams, involving aircraft velocity and normal load, are verified using conventional time-simulation methods and are shown to be computationally more efficient....
Possible approaches to determining lateral and range effects for bomb stations, based on observed impact points... They do not require delivery aircraft track data nor aircraft velocity and acceleration data....
Bifurcation analysis of landing gear shimmy using flexible multibody models... The resulting quasi-2-parameter bifurcation diagrams, involving aircraft velocity and vertical landing gear load, are verified using conventional time-domain simulations and are shown to guarantee significantly higher solution accuracy at ...
Video altimeter and obstruction detector for an aircraft... The hardware of a system of this type includes a downward-looking video camera, a video digitizer, a Global Positioning System receiver or other means of measuring the aircraft velocity relative to the ground, a gyroscope based or other attitude-determination subsystem, and a computer running altimetric and/or obstruction-detection software....
