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 15 of 15 for “"mechanical assemblies"”.
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Optimizing the location of components in mechanical assemblies
… Institute of Technology, Dept. of Mechanical Engineering, 1989.
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A unified approach to modeling, verifying, and improving the manufacturability of mechanical assemblies
… five parameters for products that are primarily mechanical in nature. The validity of this methodology is subject to five major assumptions: the nominal performance of the design matches the performance expected by the customer, the set of customer expectations can be represented completely by a …
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Decreasing Size, Weight, and Power of Opto-Mechanical Assemblies Using Single-Crystal Silicon
… compared to traditional programs. For optical assemblies in particular, the cost and schedule constraints substantially limit an engineer's options with regard to high-performance opto-mechanical materials. This restricts the achievable performance of the overall system. In order to overcome …
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Augmenting Datum Flow Chain method to support the top-down design process for mechanical assemblies
… which support the top-down design process for assemblies by analyzing the locating scheme or constraint structure of assemblies in absence of detailed level part geometry. The top-down design process has received attention both in academia and industry. However, there have been few analytical …
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Wear Characterisation and Usage Level Estimation of Small DC Motors
… asset recovery processes for small electro-mechanical assemblies by manufacturers of commercial machinery. The wear process in small dc motors that are used in photocopying machines was investigated and physical wear parameters that can be used to estimate the usage level of these motors …
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Design for manufacturing analysis on the Small Unmanned Ground Vehicle
… the SUGV manufacturing team must optimize its mechanical design in order to help ensure a smooth handoff between its design team and its contract manufacturer. To achieve this goal, the SUGV manufacturing team utilized a Design for Manufacturability and Assembly (DFMA) analysis to simplify …
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Design and implementation of a pair of robot arms with bilateral teleoperation
… included design and manufacturing of the mechanical assemblies, implementation of high-speed communication protocol, and tuning of control parameters.
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originalMachines : developing tools and methods for object-oriented mechatronics
… design tools and methods for creating complex mechanical assemblies that take full advantage of CAM systems. Creating unique mechatronic artifacts or "originalMachines" requires more specific and sophisticated design tools than exist today. "Object-Oriented Mechatronics" is a parametric design …
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A structural framework for assembly modeling and recognition
… are well suited to model entire classes of mechanical assemblies. Implemented as semantic networks and applying parsing strategies known from discourse theory, they enable the flexible detection of arbitrary assembly structures in image data. Graph-based models are derived from syntactic …
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Design and Construction of Computer Based Instrumentation for Absorption and Fluorescence Spectroscopy With Applications to the Study of Environmental Effects on the Absorption Spectra of 6-Acyl-2-Naphthylamines
… and constructed from the existing optical and mechanical assemblies of a converted Cary 14 dual beam instrument. A single xenon arc lamp replaced the original dual sources. Stepper motors controlled the monochromator and slit. The optical chopper was reconfigured for a three sectored …
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Dynamic Analysis of Alternative Suspension Systems for Sport Motorcycles
… are developed. The dynamical properties of the mechanical assemblies are obtained from the CAD models and used to build a realistic mathematical model of a sport motorcycle fitted with theses alternative suspension systems. Dynamical and stability analyses of the alternative front suspension …
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Establishing A Quantitative Foundation for Exactly Constrained Design
… is a robust design method which can be used for mechanical assemblies. It entails using the minimum number of constraints to eliminate all desired motion. <p>While found by some engineers in industry to have many benefits (including robust assembly, no binding or play, ease of assembly, and the …
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Designing Active Smart Features to Provide Nesting Forces in Exactly Constrained Assemblies
… features on interchangeable parts, variation in assemblies has been a major concern to designers, manufacturers, and in a more subtle way, customers. Variation, in the end, affects quality, performance and the cost of products. One particular type of design that is particularly robust to …
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Understanding the Structure-property Relationships of Solid-state Additively Manufactured Stainless-steel Coatings
… degradation of machine components in moving mechanical assemblies. Components such as gears, bearings, and metal forming tools made from 316L stainless steel (SS) suffer from early part failure due to the influence of abrasion, corrosion, sliding wear-corrosion (i.e., tribo-corrosion), and …
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Understanding the electrification-driven lubrication mechanism of phosphonium ionic liquids to enhance the degradation resistance of electric vehicle components
… the durability and efficiency of moving mechanical assemblies (MMAs) in EVs has become increasingly important. Despite the superior efficiency of EVs over internal combustion engine vehicles, more than half of their energy loss is still attributed to friction and wear in components such …