EXPERIMENTAL INVESTIGATIONS OF ACCELERATIONS AND VIBRATIONS ON VEHICLES AND BOATS

Authors : Mehmet S MERDİVENCİ, A Gültekin AVCI, Barış BARLAS

Pages : 23-40

View : 14 | Download : 4

Publication Date : 2015-10-01

Article Type : Research Paper

Abstract :The first objective of this study is to measure the hydrodynamic accelerations of Istanbul AFAD’s inflatable boats. They use these boats for life saving purposes at Black Sea coasts and beaches of Istanbul. These types of boats running at high speed in rough seas experience six degrees of freedom heave, surge, sway, yaw, roll and pitch which is highly complex and dangerous. The reasons of the accelerations and pressures on the boat are, the wave impact, dead rise angle of the boat, running trim, displacement, speed of the boat and the incident wave heights. All the combination of the parameters make the hydrodynamic problem very complicated. An inertial measurement unit IMU , was used to measure the accelerations of the boat cruising at rough seas. The second objective is to examine the quality of roads in ITU Ayazaga campus with a car and an ambulance all the while identifying the environmental factors affecting individual susceptibility to motion sickness during the road transport. The second experiment was designed to analyze the quality of roads in Istanbul Technical University Ayazaga Campus while cruising with a car in a convenient speed and measure the accelerations on the stretcher for a sick person during the cruise of ambulance in the event of an emergency case
Keywords : Vibration Dose Value, IMU Device, Rigid Inflatable Boats, Hydrodynamic Accelerations

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