Development of an Aerodynamic Model and Control Law Design for a High Altitude Airship

Nonlinear adaptive trajectory tracking control for a stratospheric airship with parametric uncertainty

“…Values of parameters and coefficients for the stratospheric airship are calculated from [9] and demonstrated in Table 1. The desired trajectory for ascendant helix tracking simulation is performed as (7) robustness of proposed trajectory tracking control method.…”

“…There are many modeling methods for airships, such as Lagrangian and Hamiltonian reduction theories [8] and Newton-Euler formulation [9,10]. For the stabilization control of an airship, linear control method has been utilized by [11], and backstepping control approach has been used by [12].…”

Modeling and path-following control of a vector-driven stratospheric satellite

“…Different with the general vehicles such as aircraft and robot, the additional fluid inertia force and the elastic deformation of balloon should be taken consideration due to the huge flexible structure during modeling (Mueller and Paluzaek, 2004). Apart from the traditional modeling methods based on the Newton-Euler equations (Schmidt, 2007), some new methods based on semidirect product reduction theory (Azouz et al, 2002) and Updated Lagrangian model (Azinheira et al, 2002) are presented.…”

Influences of initial launch conditions on flight performance of high altitude balloon ascending process

“…In order to fulfill the tasks of a high altitude balloon, ascending process is an essential part of ballooning. During ascending, the lifting force is very sensitive to thermal effect (Palumbo et al, 2007). Both the balloon itself and the environment conditions affect ascending process (Guo and Zhu, 2013).…”

“…Farley (2005) built a new user-friendly software tool, in which adaptable formulations were generalized to allow balloon flight simulations in extraterrestrial atmospheres. Palumbo et al (2007) constructed analysis code for high-altitude balloons including more features such as ballasting and valving, but is applied only to zero pressure balloons. The drag coefficient in the analysis code is presented as a function of the Reynolds number, the Froude number and another dimensionless parameter and it is quite suitable to fit the flight data.…”