Characterization of Vibrational Mechanical Properties of Polyurethane Foam

Autor: Bertrand Kirtz, Olivier Duboeuf, Evelyne Aubry, Raphaël Dupuis
Rok vydání: 2016
Předmět:
Zdroj: Dynamic Behavior of Materials, Volume 1 ISBN: 9783319224510
DOI: 10.1007/978-3-319-22452-7_18
Popis: Polyurethane foam (PU) is widely used in numerous comfort applications such as automotive seat cushioning and mattresses. The present paper is devoted to describe experimental techniques and identification of dynamic properties of thin flexible polyurethane foam used in automotive seats. In the experimental device, a free mass is mounted on a 0.1 m2 of different foams used in car upholstery. The foam is the only flexible component. The device is excited with an electrodynamic shaker with frequencies varying between 10 and 200 Hz. The response of foam samples to sweep sine excitation is analyzed for different excitation acceleration amplitude (1–2.5 mm s−2) and for different free masses.
Databáze: OpenAIRE