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 20 of 118 for “"Material handling"”.
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Material Handling for Continuous Lyophilization Process
This paper details solutions to two main challenges with a lyophilization machine: load-lock door design for isolating process chambers from the environment and other process chambers operating at different conditions and vacuum seals for complex geometries that are robust to significant …
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Automating Flow of a Material Handling System
Amazon uses a system of interconnected manned work processing stations linked by conveyances that route items from different parts of the warehouse into a single order for packing. This thesis will examine one such system, which circulates items throughout the system in trays. Leaders manage and …
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Strategic and operational plan for better material handling
Currently the material handling in NPC Singapore is done manually via forklift trucks. As the production volume increases and a new product launches, the current capacity will not be sufficient for 2012. In order to avoid the production loss and increase the operational efficiency, four solutions …
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An evaluation process for material handling systems within FMS
… process, in particular, the evaluation of material handling systems within FMS. In particular, automated guided vehicle systems (MVS) are studied from a technical viewpoint, as they are related to strategic and economic considerations. Two main evaluation frameworks are developed. One …
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Teleoperated Control of Hydraulic Equipment for Hazardous Material Handling
Traditionally, teleoperation has been an expensive and lengthy process. This thesis shows that by incorporating off-the-shelf technology into a modular design, teleoperation can be developed rapidly and inexpensively. Within six months and a hardware cost of $20k, a group of Virginia Tech students …
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Holonic-based control system for automated material handling systems
… constraints, a feasible schedule for the material handling resources emerges from the combination of individual holon's schedules. Internal evaluation algorithms and coordination mechanisms between the entities in the architecture form the basis for the resultant schedules. The …
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Simulation modeling of material handling systems: requirements and comparative analysis
This thesis identifies various material handling model parameters which must be addressed when using simulation. Operations of six material handling devices (AGVS, AS/RS, conveyors, cranes, fork trucks, and industrial robots) are studied to determine attributes which require modeling consideration. …
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Integrated Scheduling and Material Handling: Theory and Applications in Manufacturing Systems
… production scheduling is tightly linked to material handling, as jobs must be transported between machines, buffers, and storage locations. However, transportation decisions have often been simplified or decoupled from classical scheduling models. This dissertation investigates the problem …
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Job shop scheduling to minimize makespan with explicit material handling considerations
… on machines and the determination of routes for material handling vehicles. Traditionally, the machine sequences are determined independent of the vehicle routes. We demonstrate that, such a sequential approach often leads to suboptimal schedules. We study the problem of simultaneous scheduling …
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Comparison of the Different Hazards Experienced by Pallets During Material Handling
… supply chain. Forklifts are the dominant mode of material handling for palletized products, and they are responsible for the majority of damages experienced by pallets. Despite the prominence of forklifts in the supply chain and their importance in pallet design, there is a lack of research …
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Analysis and productivity improvement of an automated material handling system through simulation
As Amazon.com has grown, the company has invested in warehouse systems similar to those traditionally found in manufacturing. These systems are a complex and interconnected set of manned work processing stations linked together by conveyance. This thesis examines one such system, arranged as a set …
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The use of automatic identification technology to improve shipyard material handling processes
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 2000.
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Improve the efficiency and effectiveness of material handling for a pharmaceutical factory
A sustainable and cost-effective material handling plan was developed in a pharmaceutical factory to support the rapidly growing production demand. Problem analysis was followed by the investigation of various solutions: automated guided vehicles, transfer cars, conveyors, Kanban redesign and …
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Evaluation of Markerless Motion Capture to Assess Physical Exposures During Material Handling Tasks
Manual material handling (MMH) tasks are associated with the development of work-related musculoskeletal disorders (WMSDs). Minimizing the frequency and intensity of handling objects is an ideal solution, yet MMH remains an integral part of many industry sectors, including manufacturing, …
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Integration of operation allocation and material handling in the design of flexible manufacturing systems.
Operation Allocation and Material Handling Systems Selection are important functions of a manufacturing system and as such must be considered within an integrated approach to manufacturing systems design. This work, an extension to the work done by Paulo (1999) proposes to integrate two important …
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The impact of vehicle dispatching on the design of multiple-transporters material handling systems
Although Automated Guided Vehicle Systems (AGVS) have been around for more than thirty years, designing an AGVS is still a difficult process because of the interaction of numerous system decisions. The many important elements and variables that must be considered when designing AGVS include the …
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Assessing Trailer Material Handling Tasks: Biomechanical Modeling, Posture Categorization, Physiological Measure, and Subjective Rating
… available to aid the human operator in manual materials handling (MMH). This thesis describes an investigation to determine which of four different designs used in trailer MMH place the least physical stress on the human operator when unloading materials. Each trailer MMH design was evaluated …
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