A wide variety of heavy vehicle types—including single-unit trucks, combination trucks with one, two, or three trailers, and buses—operate on U.S. highways. These heavy vehicle types each have unique physical and performance characteristics that interact with highway features. This chapter summarizes the physical and performance characteristics of heavy vehicles. The issues addressed in this ch...

The article provides a rationale for an improved technological process transporting grain from combines (ЗK) by semi-trailer dump truck (НП) in aggregate with tractor and saddle trailer. One of the main reserves increasing productivity combine is to increase utilization factor its shift time using transshipment technology based on interoperation compensators – trailers reloaders PBN-30, PBN-40,...

In this paper we present new results on the path planning problem in the case study of the car with trailers. We formulate the problem in the framework of optimal nonholonomic interpolation and we use standard techniques of nonlinear optimal control theory for deriving hyperelliptic signals as controls for driving the system in an optimal way. The hyperelliptic curves contains as many loops as ...

Abstract The nonlinear dynamics of two-wheeled trailers is investigated using a spatial 4-DoF mechanical model. non-smooth characteristics the tire forces caused by detachment tires from ground and other geometrical nonlinearities are taken into account. Beyond linear stability analysis, vibrations analyzed with special attention to coupling between vertical lateral motions trailer. center mani...

The paper considers a motion control problem for kinematic models of nonholonomic wheeled systems. The class of maneuverable wheeled systems is defined consisting of systems that can follow any sufficiently smooth non-stop trajectory on the plane. A sufficient condition for maneuverability is obtained. The design of control law that stabilizes motion along the desired trajectory on the plane is...

In this paper, wheeled mobile robots towing trailers are used as examples of systems which can be converted into extended Goursat normal form. For some con gurations of this class of systems, a prolongation of the Pfa an system is necessary before the Goursat form can be achieved. The advantage of the Goursat form is that once the kinematic constraints are in this normal form, the point-to-poin...

Compared to steels, aluminium-alloys are comparably strong but 3 times lighter, inoxidable and unfavorable producing mechanical sparks. Aluminium alloys therefore attractive materials have been widely applied transportation industry in developed countries since 1950s. An alunimium-alloy tank has upto 20% more useful volume than a steel for the same total weight. Interior exterior protective coa...

The Truck and Trailer Routing Problem consists of a heterogeneous fleet composed of trucks and trailers to serve a set of customers. This problem has been solved previously considering accurate data available. But in a real-world the available knowledge about some data and parameters involves a vague nature. In this study, we propose the application of the Soft Computing to model and solve the ...