Limiting performance analysis of biomechanical systems for optimal injury control – Part 2: Applications

Abstract Applications of the limiting performance analysis of biomechanical systems for optimal injury control are presented. A brief review of applications based on lumped-parameter injury models is given, which includes the problems of helmets with head injuries, seat belts with thoracic injuries, helicopter seat cushions with spinal injuries, toepan padding with lower limb injuries, and child seat sled test corridors with best and worst responses. Then, the problem of ejection seat cushions for the optimal control of spinal injuries is investigated. A rigid multi-body model is developed to describe the biodynamics of the entire system including the occupant. Peak lumbar load in the vertical direction is used as the safety performance index for ejection seat cushions and is minimized. Parametric optimization is performed on a particular cushion to find its optimal performance.

[1]  D C Viano,et al.  Evaluation of biomechanical response and potential injury from thoracic impact. , 1978, Aviation, space, and environmental medicine.

[2]  Zhiqing Cheng,et al.  Evaluation of the Safety Performance of Ejection Seat Cushions , 2004 .

[3]  Jeffrey Richard Crandall,et al.  A Study of Standards for Child Restraint System Sled Tests , 1999 .

[4]  C. K. Kroell,et al.  Impact Response of the Human Thorax , 1973 .

[5]  Zhiqing Cheng,et al.  Using ATB in Optimal Injury Prevention and Reduction , 2003 .

[6]  Rolf H. Eppinger,et al.  THE EFFECT OF ACTIVE MUSCLE TENSION ON THE AXIAL INJURY TOLERANCE OF THE HUMAN FOOT/ANKLE COMPLEX , 2002 .

[7]  Zhiqing Cheng,et al.  Limiting Performance of Helmets for the Prevention of Head Injury , 1999 .

[8]  Jeffrey Richard Crandall,et al.  A study of standards for child restraint systems for impact tests , 1999 .

[9]  Zhiqing Cheng,et al.  Limiting performance analysis of toepan padding for mitigating lower limb injuries , 2004 .

[10]  B F Hearon,et al.  Effect of seat cushions on human response to +Gz impact. , 1986, Aviation, space, and environmental medicine.

[11]  Walter D. Pilkey,et al.  Optimal control of helicopter seat cushions for the reduction of spinal injuries , 2001 .

[12]  Richard L. Stalnaker,et al.  Parametric studies of the translational head injury model , 1988 .

[13]  Peter R. Payne,et al.  DYNAMIC MODELS OF THE HUMAN BODY , 1969 .

[14]  D. Viano,et al.  The Viscous Criterion - Bases and Applications of an Injury Severity Index for Soft Tissues , 1986 .

[15]  Zhiqing Cheng,et al.  Limiting performance analysis of biomechanical systems for optimal injury control – Part 1: Theory and methodology , 2005 .

[16]  M Pogacnik,et al.  Dynamic stabilization of the turn-milling process by parameter optimization , 2000 .

[17]  Richard L. Stalnaker,et al.  SENSITIVITY ANALYSIS FOR THE TRANSLATIONAL ENERGY CRITERIA: OVERALL HEAD INJURIES , 1989 .

[18]  Hearon Bf,et al.  Effect of seat cushions on human response to +Gz impact. , 1986 .

[19]  Zhiqing Cheng,et al.  Limiting performance of seat belt systems for the prevention of thoracic injuries , 2000 .