Investigations about the feasibility of delivery systems with unmanned aerial vehicles (UAVs) or drones have been recently expanded, owing to exponential demand for goods be delivered in recent years, which has further increased by COVID-19 pandemic. UAV can provide new contactless strategies, addition applications medical items, such as blood, medicines, vaccines. The safe is paramount applica...

This research explains airplane model with two vertical vibrations for airframe and landing gear system. The purpose of this work is to advance vibrational model for study of adjustable vibration absorber and to plan Proportional-Integration-Derivative approach for adapting semi active control force. The coefficients of this method are modified as stated by Bee multiobjective optimization using...