Sensitivity Analysis of the Turning Motion of an Underwater Glider on the Viscous Hydrodynamic Coefficients

Autonomous underwater gliders (AUG) are a class of vehicles that move using buoyancy engine and forces from wings. Gliders execute turning motion with the help rudder or an internal roll control mechanism trajectory turn is spiral. This paper analyses sensitivity characteristics spiral manoeuvre on hydrodynamic coefficients glider. Based dynamics model gliding fish whose enabled by rudder, effect hull quantified. Local analysis undertaken indirect method. The order importance evaluated. It observed path parameters most sensitive to side force created drag coefficient predominant lift coefficients. study will aid in quantifying change geometry manoeuvrability AUGs.