Design And Research Of Fire Engine Cab Based On Ergonomics

Fire engine belongs to the special vehicles, the design of its cab has special requirements. Most of our city fire engines use domestic auto chassis, it can't meet the requirements of fire armour because it has a lot of defect, such as its focus is too high, the cabin isn't capacious, display device is not reasonable and it's inconvenient when firefighters get on or off the truck. It is necessary to study the fire engine cab based on auto ergonomics and to put forward the design method which is suitable for our firefighters to layout the cab.Taking the "12 tons of city water truck" as research object, this paper analyzed the using of auto ergonomics theory in the process of fire engine cab's design, and improved the layout problem in fire engine cab. This paper redecorated the cab with the size of firefighters in China and determined appropriate exterior shape of the cab on the basis of investigation and study with cab's hard points.This paper points out the background of this topic in chapter one, and summarized the application of ergonomics in trucks, then reviewed domestic and foreign research on fire engine cab design with ergonomics, At last, the author put forward the research contents. The second chapter analyzed the current situation of the fire engine industry in detail, and summarized the main problems in fire engine, based on this, taking eight tons of city water tank truck's cab ergonomics design problems as example, this paper proposed the key research content of 12 tons of water tank fire engine cab ergonomics layout.In chapter three, combining with fire engine cab layout problems, this paper analyzed layout contents, sequence, requirements and decorate tools of it which is suitable for our country, and put forward the concrete implementation plan.In chapter four, this paper introduced the importance of H point and eye ellipse theory for fire engine cab layout design, and analyzed solving principle of the optimal H point and the determination of eye ellipse.The fifth chapter introduced the selection of firefighters anthropometry, then determined the specific parameters of driver's SgRP point and eye ellipse combining the layout hard point data of water tank truck's cab which is researched, and made a new arrangement design with the firefighters human model and cab's whole model which were created with virtual software. In addition, considering the lightweight trends in fire engine cab, this paper designed fire engine's appearance and frame.To sum up, this paper analyzed fire engine cab with the auto ergonomic principle, and improved the fire engine cab's comfortableness, vision, hand research and the convenience for on and off etc. The ergonomics design method of fire engine cab is meaningful for occupant's safety, comfortableness and the improvement of operational efficiency, this can also save cost and short the development cycle.