1.5 Days
I.D.#C0250                                                                                                                             Covering ten years of research on improving seats for occupantprotection in high-speed rear crashes and whiplash prevention in
low-speed crashes, this course is unique in laying out a scientific
framework for the design and evaluation of seats for the full range of
rear impact speeds, including high-speed crashes where occupant
retention is a key factor and low-speed crashes where whiplash
prevention is important. Instructor Dr. David C. Viano, author of the
book Role of the Seat in Rear Crash Safety, describes safety research
which has led to new products, new seat specifications, and increased
understanding of occupant protection.                                                                                       
Extensive product benchmark testing, conducted with new QuasistaticSeat Tests (QST), led to the development of a new generation of
yielding seats with high retention capabilities. This course looks at the
historic contradiction between stiff seat designs for occupant retention
and yielding seatbacks for whiplash prevention, and addresses the
background and development of the SAHR active head restraint,
which is now available on many OEM vehicles and has proven field
effectiveness of 43%-75% in preventing whiplash.The research covered in this seminar was conducted in collaboration with seat suppliers, so that the results are practical in defining new
seat specifications and components first introduced in vehicles in
1997. Dr. Viano will also describe various new seat concepts that have
been patented, developed, and introduced in high volume production.
The practical aspects of litigation on seat performance in rear crashes
will also be discussed.Attendees will receive a copy of Dr. Viano’s textbook Role of the Seatin Rear Crash Safety and The Debate Between Stiff and Yielding
Seats, a compilation of SAE technical papers.
 
Learning Objectives
By attending this seminar, you will be able to:
􀁴􀀁Discuss the characteristics of rear crash fatalities and injuries
􀁴􀀁Recognize the implications of head restraint positions to neck injury
risks in rear crashes
􀁴􀀁Review litigation and field performance issues
􀁴􀀁 Identify various new seat developments and subsystem, sled and
barrier crash testing used to verify the new approaches
􀁴􀀁Differentiate seat specifications and performance criteria
􀁴􀀁Describe the debate between stiff and yielding seats

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