Passenger seats are important for transportation as they provide the occupant with comfort and safety while traveling. A seat's primary function is to provide seating for passengers. Furthermore, the passenger is subjected to various forces during a crash event, so the seat must protect the occupant. Seats should also absorb vibration and noise to ensure a comfortable journey. As a result, a seat design should be stylish, lightweight, and meet safety standards. In the medium term, the development of passenger seats will continue to be a competition between safety, comfort, low cost, and lightweight requirements.