PT  - JOURNAL ARTICLE
AU  - Kulhavý, Petr
AU  - Srb, Pavel
AU  - Petru, Michal
TI  - Numerical and Experimental Analysis of the Real Load Arising in the Cushion of the Car Seat
DP  - 2015 Dec 1
TA  - Manufacturing Technology Journal
PG  - 999--1005
VI  - 15
IP  - 6
AID - 10.21062/ujep/x.2015/a/1213-2489/MT/15/6/999
IS  - 12132489
AB  - Nowadays people spend still more of their life on the road. Vehicles has been becoming increasingly sophisticated and the main direction of their development is placed primarily into the areas of environment, design, safety and comfort. This work focuses primarily on the last-mentioned point, and that's seating comfort and the phenomena with straight influence on the transported persons. Probably with any of car elements, isn't the person in a direct contact to much as with the seat and therefore the seats and their innovation are still in considerable interest of the customers and manufacturers. This work deals with description of the resulting tensions and distribution of the specific pressures in the cushion of a car seat and also describe the creation of an appropriate computational model.Based on the real transmission data, that was measured during driving a car, has been carried out an experimental measurements of static and dynamic loading of the overall stiffness and response of the system. Subsequently, depending to the real CAD data were compiled the boundary and materials conditions that describe the statical FEM model of the polyurethane cushion. For the quasi static load was carried out the experimental measurements on a mechanical pulsator, that is suitable for assessing the viscoelastic and hysteresis effects inside the materials. The found results have been verified with using the x-sensor on a model of real human back during the scanning of its specific contact pressure.