Abstract: A compact and failsafe magnetorheological energy absorber design including both a light weight piston (LWP) embodiment in which linear motion is subjected to a linear damping force, and a light weight rotary vane (LWRV) embodiment in which linear motion is converted into rotary motion and is subjected to a rotary damping force. Both embodiments allow increased damper stroke within a compact mechanical profile. A new lightweight Magnetorheological energy attenuation system (LMEAS) for a vehicle seat is also disclosed using the new LMRW MREA.

Abstract: A Comprehensive and Retrofittable Occupant Sensor Suite (CROSS) for logging of accurate occupant dynamics during blast events encountered on the battlefield. The CROSS system is low cost, can be retrofit to any vehicle seat, will not restrict soldier mobility, and is highly expandable to include both wired and wireless sensors. The CROSS system reliably measures and sends all data channels to a vehicle data recorder (VDR), and internally stores data (with its own power backup) in case connectivity to the VDR or vehicle power is lost during a blast event. The CROSS system yields critical information for forensics analysis, the modeling of occupant dynamics during blast events, and the design of protective devices.