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Earthmoving machinery

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This thesis by Karl Pettersson explores an automated methodology for designing complex multiple-mode transmissions, with a focus on energy efficiency, for construction machinery and other mobile working vehicles. The work addresses the challenges posed by high fuel prices and stringent emission regulations, which drive the development of fuel-efficient drive transmissions. The thesis emphasizes the importance of sophisticated product development methods due to the increasing complexity of transmission architectures. By using optimization and detailed simulation models, the methodology supports industrial engineers in designing transmissions tailored to specific vehicle applications. The research is particularly relevant for the design of transmissions in construction machines, agricultural machinery, forest machines, and mobile mining equipment, providing engineers with tools for reliable concept evaluation in early design stages.

Engineering design. --- Earthmoving machinery.

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Terrassement. --- Earthwork. --- Engins de terrassement. --- Earthmoving machinery.

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Transportation --- Grading (Earthwork) --- Motor vehicle driving --- Excavating machinery --- Anchorage (Structural engineering) --- Scrapers (Earthmoving machinery) --- Buckets (Excavating machinery)

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After giving a brief history of tillage practices and implements used throughout the world dating back to ancient times, this book goes on to describe the basic soil mechanics techniques needed to calculate the forces developed in soil by simple-shaped cutting tools. The methods of measuring soil mechanical properties, water pressure in soil and shear rate effects are touched upon. A review is given of two and three dimensional soil cutting mathematical mechanics models to predict soil cutting forces and soil volumes disturbed by cutting and tillage tools, as well as the state-of-the-art of

Tillage --- Travail du sol --- Matériel --- Equipment --- 631.51 --- Bodem : scheuren --- Bodembewerking --- Cultivation of soils --- Soil cultivation --- Soil tillage --- Tilling --- Agricultural systems --- Agriculture --- Soil management --- No-tillage --- Soil preparation and ploughing --- 631.51 Soil preparation and ploughing --- Tillage. --- Soil mechanics. --- Earthmoving machinery. --- Earth moving machinery --- Earthmovers --- Construction equipment --- Soil engineering --- Soils --- Soils (Engineering) --- Geotechnical engineering --- Mechanics --- Foundations --- Soil physics --- Sols --- Préparation.