Engineering topics
Publications and source records attributed to Vinh, N. X..
Thrusting lifting orbital vehicle nonlinear longitudinal dynamics in near-circular orbit, deriving orbital elements variation behavior and angle of attack mode period and damping
Weierstrass condition for optimality in coplanar elliptic orbit transfer involving velocity impulse control variables, discussing switching relations at corner of optimal trajectory
Optimal three dimensional impulsive orbit transfer at cuspidal point of primer locus in terms of three parameters to facilitate computation and tabulation
Nonrolling lifting gliding vehicle hypersonic longitudinal dynamic stability, applying analysis to space shuttles
Optimum switching in minimum fuel, time-free impulsive planar transfer problem by primer vector concept
Analytical solutions to optimum orbit modifications including atmospheric maneuver
Longitudinal dynamics of lifting vehicle in orbital flight
Recurrence formulas for calculating Fourier expansions in elliptic motion in terms of eccentric and mean anomaly
Analytical solutions of optimum orbit modifications
Nonlinear longitudinal dynamics of lifting orbital vehicle in near circular orbit, considering translational motion components effecting orbital decay or dilatation
Hypervelocity glide vehicle optimum maneuvers, finding lift optimal control law for maximization of final velocity or altitude
Optimum maneuvering of glide vehicle at hypersonic speeds
Satellite disorbiting from elliptical orbit by multiple impulses solved by optimal control methods
Logarithmic spirals, analyzing curve on surface of cylinder, existence and conditions of ellipticity conditions, determining curve transformation into ellipse based on logarithmic spiral properties
Recurrence formulas for Fourier expansion of Hansen coefficients
General solutions to trajectory and orbit equations
One sided fourth order surface generated by circles with common center and common diameter