Heavy-Duty Wheeled Vehicles : Design, Theory, Calculations

Heavy-duty wheeled vehicles (HDWVs) are all-wheel-drive vehicles that carry 25 tons or more and have three or more axles. They transport heavy, bulky cargo such as raw minerals, timber, construction materials, pre-fabricated modules, weapons, combat vehicles, and more. HDWVs are used in a variety of industries (mining, logging, construction, energy) and are critical to a country’s economy and defense.

These vehicles have unique development requirements due to their high loads, huge dimensions, and specific operating conditions. Hauling efficiencies can be improved by increasing vehicle load capacity; however capacities are influenced by legislation, road limits, and design. Designing HDWVs differs from other multi-purpose all-wheel-drive vehicles. The chassis must be custom-designed to suit the customer’s particular purpose. The number of axles is another variable, as well as which ones are driving and which are driven. Tires are also customizable.

Translated by SAE from Russian, this book narrates the history of HDWVs and presents the theory and calculations required to design them. It summarizes results of the authors’ academic research and experience and presents innovative technical solutions used for electric and hydrostatic transmissions, steering systems, and active safety of these vehicles.

The book consists of three parts. Part one covers HDWV design history and general design methods, including basic vehicle design, and evaluating HDWV use conditions. Part one also covers general operation requirements and consumer needs, and a brief analysis of structural components of existing HDWVs and prototypes. Part two outlines information needs for designing HDWVs. Part three reviews basic theory and calculation of innovative technical solutions, as well as special requirements for component parts.

This comprehensive title provides the following information about HDWVs:

• History of design and manufacture.
• Manufacturers’ summary design data.
• Background data on sample vehicles.
• Component calculation examples.
• Overview of motion theory, which is useful in design and placement of bulky cargo.

Preface
Acknowledgments
Symbols used
Enterprises and institutions

Part I : Evolution of Heavy-Duty Wheeled Vehicles
Chapter 1 : History of HDWVs
Chapter 2 : Multi-Support Vehicles
Chapter 3 : Heavy and Super-Heavy-Duty Dumpers
Chapter 4 : Evolution of the Multi-Axle Chassis

Part II : Overview of HDWVS
Chapter 5 : HDWV General Design Methods
Chapter 6 : Conditions and Areas for Using HDWVs
Chapter 7 : Basic Requirements for HDWV Consumer Properties
Chapter 8 : Main Technical Criteria and Efficiency Evaluation of HDWV Solutions

Part III : Fundamentals of HDWV Theory and Design
Chapter 9 : Basic Principles of HDWV General Layout
Chapter 10 : Power Units of Wheeled Vehicles
Chapter 11 : Fundamental Theory and Calculation of Power Transmission from Engine to Wheeled Mover
Chapter 12 : Oscillations in a Multi-Axle Wheeled Chassis with Resilient Tires
Chapter 13 : Fundamental Theory and Design of Springing Systems in HDWV Wheels
Chapter 14 : Curvilinear Motion of Multi-Axle Wheel Chassis
Chapter 15 : Fundamental Theory and Design of HDWV Steering Systems

References
Index
About the Authors