For Piston-Prop Powered TUAVs Effect of Both Lower and Upper Chord Lengths Variatıon on Autonomous Flıght Control System’s Controller Cost

<p class="MsoNormal" style="margin-top:0cm;margin-right:0cm;margin-bottom:6.0pt;margin-left:18.0pt;text-align:justify;mso-line-height-alt:1.25pt"><span lang="EN-US" style="font-size:12.0pt;font-family:&quot;Times New Roman&quot;,&quot;serif&quot;;mso-ansi-language:EN-US">In this study for a tactical unmanned aerial vehicle(i.e., TUAV) which has piston-prop powerplant system, both lower and upperchord lengths of its vertical tail plane and PID controller gains of its hierarchicalautonomous trajectory tracking system are simultaneously and stochasticallyredesigned by using a constrained and stochastic optimization approach calledas c-SPSA in order to minimize cost of this UAV dynamical system. The principaldesign parameters are lower and upper chord lengths of this TUAV’s verticaltail plane in this study. As a result of this while other parameters of thevertical tail are fixed, the surface area of the vertical tail can be varied.In addition, controller gains of the 6 PID controllers for hierarchicalautonomous control system are other stochastical optimization designparameters. In this study there are both lower and upper constraints on these 8optimization parameters. As a result of mentioned simultaneous and stochasticaldesign and optimization methodology considerable controller cost save isobtained with respect to the initial situation. This work has been supported byErciyes University Scientific Research Projects Coordination Unity under grantnumber FBA-2024-14147.<o:p></o:p></span>