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 27 for “"Assembly Time"”.
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High Speed Acoustophoresis for Multiphase Micron-Sized Particle Assembly
Acoustophoresis assembly is a non-contact assembly method characterized by its ability to assemble micron particles in 2D and 3D mm-scale patterns and its material agonism. In this method, acoustic standing wave pressure gradients interact with the particles to generate the acoustic radiation …
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Design and manufacturing analysis of a window shading system
… cost analysis and redesign of a gearbox assembly for the window shading system. This is a logical next step in the product's development. An estimate for the assembly time for the current version of the gearbox assembly is found. The parts are then redesigned for improved assembly time, …
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Optimization of the Assignment of Printed Circuit Cards to Assembly Lines in Electronics Assembly
… line assignment problem in printed circuit card assembly systems. The line assignment problem involves the allocation of circuit card types to an appropriate assembly line among a set of assembly lines with the objective of reducing the total assembly time. These circuit cards are to be assembled …
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An Integer Programming-Based Generalized Vehicle Routing Approach for Printed Circuit Board Assembly Optimization
… We also rigorously study the sensitivity of the assembly time on such machines with respect to the hoard parameters and machine configuration allowing equipment manufacturers to focus on improving and customizing machine design.
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Cost analysis and comparison of tray container style storage and stackable tote style storage
… style shelf has lower manufacturing costs, assembly cost and time, while stackable tote style shelf had competitive edge on packaging and shipping costs, and space utilization. The manufacturing cost, packaging cost, and shipping costs $174.44, $59.77, and $39.04 respectively for tray …
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CMOS Transceiver Front-Ends in Mobile Communication Handsets - Architectures and Building Blocks
… off-chip components, which increases the handset assembly time and costs, is preferably avoided. However, integrating a complete transceiver on a single chip leads to disturbances between building blocks. This imposes new and more stringent requirements on building block and transceiver …
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Manufacturing and design of low cost stackable drawer for mass production
… warehouses that increases stiffness, decreases assembly time, maintains or improves gross cubic utilization (GCU) - the amount of total available space that is actually utilized by product within the unit-while minimizing costs related to onsite assembly, shipping, packaging and manufacturing. …
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Modelling and design of a miniature low power solenoid valve
… Finally, methods for reducing the manufacturing time and improving the assembly time of the solenoid are presented.
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From String to Structure: Graph Threading for Physical Assembly
… deployable structures—create intricate, and sometimes dynamic, designs by threading cord through tubular components. We model the underlying design challenge—threading tubes so that they achieve a target connectivity when the string is pulled taut—as graph threading. In this formulation, tubes …
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Developing a use case for implementing modular engineering at portfolio companies
… benefits are: fewer unique part numbers, less assembly time, lower direct purchasing costs, fewer suppliers, faster time to market, shorter lead-time and more market offerings. The bottom line benefit is a streamlined operation that would add value to the company. Finally, this thesis …
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Design and Control of a Structurally Elastic Humanoid Robot
… placing parts onto an engineering build for an assembly line. Unlike other robots that have a fixed base, legged robots must rely on switching contact states and apply forces to the ground to navigate which poses several control and state estimation challenges. Currently, humanoid robots are …
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Selection and evaluation of joint types and joining processes for concurrent assembly/disassembly-based design
In designing products, Design-for-Assembly (DFA) has been successfully used for several decades to reduce lead times, processing times, and equipment overhead. Though the DFA approach results in products which are easy and efficient to assemble, such products may be difficult to disassemble and/or …
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Structural health monitoring of bolted joints using thermal contact resistance and ultrasonic signals
… are useful components that enable easy assembly and disassembly for maintenance purposes. However, human workmanship engaged in the process of assembly makes an integrity check of the bolted joints a necessary process. Robust monitoring of such bolted joints is a critical task for …
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Flow controlled solvent vapor annealing of block copolymers for lithographic applications
Self-assembly of block copolymer thin-films may provide an inexpensive alternative to patterning lithographic features below the resolution limits of traditional optical methods. Block copolymers (BCPs) are polymers made of two or more distinct monomer/block units that are covalently bonded. Due to …
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Improvement model for reducing stock-outs using inventory management tools in a commercial company specializing in solar thermals
… costs and, finally, the reduction in the average assembly time of an accessory kit from 72 to 33 minutes. Finally, a financial analysis is carried out that involves the evaluation of economic flows before and after implementation with a budget of $982.35 to examine the financial viability of the …
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Optimizing The Performance Of A Chip Shooter Machine
… part of operating a printed circuit board (PCB) assembly system effectively. The focus of this research is to develop a new solution approach to determine the component placement sequence and feeder assignment for a turret style Chip Shooter machine often used in PCB assembly systems. This …
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