Research of vibration levels in specific parts of vehicle traveling at varying speed on road with different types of surface

Development of measures to reduce the value of vibration velocity and vibration acceleration, arising on various elements of the car, allows to develop vehicles with high ergonomic indicators. Excitation of vibrations, first of all, is connected with different values of irregularities of a road surface, with mechanical parameters of the moving car (weight, rigidity of a suspension etc.), and also with speed of the car. Measurement equipment and vibration sensors during full-scale studies were placed in the car, and in order to reduce the error of the measurement results, the car speed was stabilized before passing the road section, on which the vibration was recorded. As the measuring and recording equipment were used: MMF sensor type KD45, signal amplifier Conditioning Amplifier B&K type 2626 and recording equipment USB Oscilloscope TiePie type HandyScobe HS3. The vibration sensor was attached with a magnet in the luggage compartment of the car near the rear shock strut. The paper contains photos of the road surface, on which the measurements of vibration acceleration and vibration were done, as well as the results of processing the parameters of full-scale measurements of vibration.