Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
EVALUATION OF A SMARTPHONE EFFECTIVENESS AS AN INEXPENSIVE TOOL FOR VIBRATION ANALYSIS IN VEHICULAR COMFORT
Submission Author:
Ricardo Mateus Klein Cargnin , RS
Co-Authors:
Gabriel Klein Lunkes , Carlos Eduardo de Souza, Ricardo Mateus Klein Cargnin
Presenter: Ricardo Mateus Klein Cargnin
doi://10.26678/ABCM.COBEM2017.COB17-0901
Abstract
An important standard of a vehicle’s quality is the comfort on its conduction. Vibrations transmitted to the driver, mainly caused by the road superficial irregularities, can disturb this comfort. Also, high magnitude vibrations may cause disease and health problems, especially Low Back Pain. In order to ensure the driver’s health and comfort, Federal agencies enforce regulations to limit transmitted vibration. For vibration control, industrial instrumentation offers an effective way to perform these measurements. However they represent a huge cost that make not feasible for small companies and research laboratories. This paper intends to evaluate the smartphone’s potential to perform such measurements, since it have on its structure gyroscopic sensors and accelerometers, sensors capable of executing this task. Furthermore, smartphones represent barely no costs comparatively, since it is a common good to the majority of the population. As a case study, a medium sedan is used as a test vehicle and it is mathematically modelled as a half-car with 5 Degrees of Freedom (DOF). For the numeric simulation, the driver is modelled with 4DOF. Smartphone measurements and numerical results are compared to prove its effectiveness.
Keywords
smartphone, Comfort, Health, Vibration
