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- W645861736 abstract "The primary advantages of the tractor-trailer configuration like quick and simple separation of tractor and trailer and an uninterrupted long loading area are in contrast with disadvantages in driving and braking stability, in suspension behavior, in aerodynamics and in size of the total loading area. A new tractor-trailer concept, based on a modified coupling, reduces the disadvantages mentioned above and increases safety and economy of the vehicle. Modifications are analysed based on mathematical simulated models for the vehicle and its effects are described qualitatively in the following: (1) The degree of freedom for rotation round the horizontal cross axis is restricted. This reduces the pitch motions of the tractor, and, additional to a general improvement in comfort, is the possibility to a) relocate the sleeping cot to the generally unused area above the drivers' seat, b) reduce the distance between cabin and trailer. a) and b) will increase the available loading area. c) design the upper part of the cabin like an airshield to get a propitious drag coefficient and a low improved fuel economy. These effects are investigated wit wind tunnel models. (2) The modified joint separates the point of support for the vertical load of the trailer from the vertical axis of rotation between the two vehicle parts. Through the resulting offset contact point of the lateral forces acting on the tractor, the tractor becomes more stable during braking, i.e. jack-knifing of the tractor-trailer will be avoided. e) a high driving stability and good handling characteristics are achieved. A concluding reconsideration of economy shows that with the same level of transportation performance it is possible to reduce the operating costs by 10 per cent through utilization of the increased total loading area and the improved fuel economy. (Author/TRRL)" @default.
- W645861736 created "2016-06-24" @default.
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- W645861736 date "1982-11-01" @default.
- W645861736 modified "2023-09-27" @default.
- W645861736 title "CONCEPT OF AN ECONOMICAL, SAFE AND COMFORTABLE TRACTOR- TRAILER CONFIGURATION" @default.
- W645861736 hasPublicationYear "1982" @default.
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