Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"wheel loader"”.
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Autonomous ground cover clearing utilizing a robotic wheel loader
… The robotic design is based on an articulating wheel loader, electrically driven with hydraulic articulation. The sensor suite comprises a depth camera used for Simultaneous Localization and Mapping (SLAM) and material detection. Potentiometers for joint positioning, motor encoder for distance …
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The effect of overloading on reliability of wheel loader structural components
… of material handling equipment, specifically wheel loaders, and their ability to operate reliably when subjected to high overload conditions. The overall aim is to determine the effect of overloading the bucket on wheel loader reliability. The specific objectives of the research are to: 1) …
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Improve the lead time for the medium wheel loader using core configuration and delayed product differentiation
… to improve the lead time for Caterpillar Medium Wheel Loaders in the North America market. The Medium Wheel Loaders division is undergoing many commercial value chain challenges: long lead time to dealers, high demand variability and high degree of configuration complexity. The long lead time may …
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Estimating Uncertainties in the Joint Reaction Forces of Construction Machinery
… mechanical system. The system of interest was a wheel loader, but the methodology developed can be applied to any multibody systems. The modeling technique implemented focused on efficiently modeling stochastic systems for which the equations of motion are not available. The analysis targeted the …
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Novel Energy Efficient Electrohydraulic Steer-By-Wire Technology
… of a steering-only cycle performed on a compact wheel loader reveal a substantial improvement over the baseline machine in regards to fuel consumption reduction (-14.5%), productivity increase (+22.6%), and overall fuel efficiency improvement (43.5%). ^ A yaw stability control algorithm is …
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Advanced Control Strategies for Mobile Hydraulic Applications
… those used in the field including construction (wheel loaders, excavators, and backhoes, etc.), load handling (cranes, reach-stackers, and aerial lift, etc.), agriculture (harvesters, etc.), forestry, and aerospace.</p> <p>For these applications the proposed control method is designed to achieve …
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Acquisition, retention and transfer of heavy equipment operator skills through simulator training
… of heavy construction equipment: excavator and wheel loader. It aims at decomposing the complexity of equipment operation and distinguishing the skills to be acquired for each machine. It consists of five studies, three conducted with students at Purdue and two with expert operators at John …
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The constrained discrete-time state-dependent Riccati equation technique for uncertain nonlinear systems
The objective of the thesis is to introduce a relatively general nonlinear controller/estimator synthesis framework using a special type of the state-dependent Riccati equation technique. The continuous time state-dependent Riccati equation (SDRE) technique is extended to discrete-time under input …