טכניון מכון טכנולוגי לישראל
הטכניון מכון טכנולוגי לישראל - בית הספר ללימודי מוסמכים  
Ph.D Thesis
Ph.D StudentByran Eyal
SubjectErgonomic Design Based on Operator's Efficiency of
Multitask Vehicles
DepartmentDepartment of Architecture and Town Planning
Supervisors Professor Issachar Gilad
Professor Rivka Oxman
Full Thesis text - in Hebrew Full thesis text - Hebrew Version


Abstract

This thesis is about the ergonomic aspects of multi-task vehicle's cockpit, and it's fitting to the human driver and his needs. The design of off-road vehicles is complicated and challenging. Particularly when the driving, is accompanied with another task, simultaneously (e.g. plowing). These vehicles are called multi-task vehicles. Such a complex environment may lead to human error and end up with an accident. The literature suggests three combined and important aspects, in the vehicle's cockpit design: vision control, anthropometrical fitting and biomechanical considerations. These three aspects are equally important and depend on one another. Surprisingly, the literature search found no study that deals with the cockpit design based on these three aspects, combines, despite their importance. This study presents a pioneering experimental ergonomic research, of an off-road cabin design. The research inquires the three aspects, combined, generating quantitative results. These inquires results may produce a better fitted ergonomic cockpit design based on the operator and his operational needs.  The results can help the engineer to design a better fitted cabin that may lead to less strenuous sitting postures and fatigue.  Based on computer simulations, the field-of-view, hand and foot reach envelopes based on anthropometric database, and biomechanical upper-body loads are investigated, on two case studies vehicles: an agricultural tractor and a military armored personnel carrier. Based on the simulations results, new improved design is suggested for the cabin design that follows ergonomic guidelines, rules, and thinking. New simulations on the new and improved cabin designs, show an overall improvement in clearer field-of-view, better controls position, and reduce in biomechanical loads on the operator's upper body.