A Study on the Displacement of Lumber Support Affecting the Comfortableness of Passenger

Lumber support as the part of automotive seat supports the pressure applied on waist by clearing the tiredness of passenger at long driving. In this study, lumbar support of automotive seat is modelled. Various bids are built up at its bed. The main purpose is to look for adequate model on comfortableness by calculating displacement according to applied force when some passenger sit at automotive seat. Full build -up type of 5 rows can be seen most suitable for passenger`s comfortableness and its durability as the inner displacement of 5mm and contact force of 500 N.