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Full-Text Articles in Engineering
Adapted Recumbent Bike, Kurtis Mundell, Dane Tiemeier, Laura Yakuma, Darius Yu
Adapted Recumbent Bike, Kurtis Mundell, Dane Tiemeier, Laura Yakuma, Darius Yu
Mechanical Engineering
The adapted recumbent project was to redesign a disabled veteran’s recumbent bicycle. The main areas of concern were the crank pedal, chain tension, braking and steering system, and ergonomics. Since the customer is an avid biker, this bike will be used often, so the design is based on the ease of repair and replacement. The crank system was redesigned to a lightweight, adjustable part with chain clearance and high strength. The chain tension was improved by replacing the existing single idler wheel/chain tube system with a dual idler wheel system. The dual idler has a titanium sprocket in one of …
Analysis Of Alternative Manufacturing Processes For Lightweight Biw Designs, Using Analytical Hierarchy Process, Srinath Vijayakumar
Analysis Of Alternative Manufacturing Processes For Lightweight Biw Designs, Using Analytical Hierarchy Process, Srinath Vijayakumar
All Theses
The main objective of the analysis was to investigate the forming of Body in White (BIW) panels using alternative processes most suitable for replacing the conventional press working process in order to achieve a reduction in the total mass of the vehicle body structure. The selection of the alternatives was guided by multi criteria decision making tool, the Analytic Hierarchy Process (AHP). Here the alternatives were selected based on their relative importance to the different manufacturing attributes considered. The selected processes were applied to the manufacturing of different parts of BIW indicated in the BOM along with suggestion of the …
Analysis Of Part Consolidation Techniques For Automotive Body In White Panels Based On Advanced Sheet Metal Forming Technologies, Harish Thiruvengadam
Analysis Of Part Consolidation Techniques For Automotive Body In White Panels Based On Advanced Sheet Metal Forming Technologies, Harish Thiruvengadam
All Theses
The automotive industry is looking to move from mass production to mass customization in order to manufacture and sell a variety of products in different markets on a global scale. This requires a robust and cost effective manufacturing system which would help design new products in the shortest possible lead time. This thesis tries to investigate the current sheet metal forming process for body in white, identify the limitations and propose an alternative which would help the industry cut down product lead time and costs. Decision making tools are used to identify the technical requirements of a BIW manufacturing system …
Lean Manufacturing As A Source Of Competitive Advantage, Ryan Scott Williams
Lean Manufacturing As A Source Of Competitive Advantage, Ryan Scott Williams
Theses and Dissertations
The productivity advances generated from lean manufacturing are self-evident. Plants that adopt lean are more capable of achieving high levels of quality, shorter lead times, and less waste in the system. While it seems logical that higher levels of productivity and quality, as is common in lean companies, should result in positive financial performance, the research community has failed to establish the financial profitability of lean. Those researchers who have studied the financial returns issue report varying results. The goal of this research was to determine if a connection exists between lean and financial success and to discover why so …
Characterization Of Defects In Metal Sheets Via Infrared Thermography, Marc Anthony Harik
Characterization Of Defects In Metal Sheets Via Infrared Thermography, Marc Anthony Harik
University of Kentucky Master's Theses
Defects in Aluminum, Stainless steel and galvanized steel sheets are studied in reflection mode infrared thermography. The effect of material properties, surface finish, heating intensity, heater emission spectra, pixel size and defect size are studied. Contrast is governed by heat quality, emissivity and defect geometry—which follows a logarithmic trend. The diameter detected via infrared thermography is found to be at least 30% larger than the measured diameter and sub-pixel defects can be detected. The use of gradient and Laplacian of temperature is introduced as a means of increasing defect contrast and mitigating heater variation.
Design Of A Low Cost Powered R/C Combat Airplane And Manufacturing Plan, Jonathan N. Bailey
Design Of A Low Cost Powered R/C Combat Airplane And Manufacturing Plan, Jonathan N. Bailey
Industrial and Manufacturing Engineering
The goals of this project are to design a low cost powered remote control combat airplane capable of outdoor flight, named the Aero EX and to develop a manufacturing plan to produce each unit at a selling price of $200, while operating at a 25 vehicle batch rate inside a 1,000 square foot facility. These goals are achieved using: Aerospace fundamentals to design the vehicle, Design for Manufacturability to optimize the design for minimal use of labor, Design for Assembly to give consumers the ability to build the vehicle without fixtures, Pull production to eliminate scheduling and match customer demand. …
Design For Manufacturing Of Sports Equipment, Cedrick Bit, Christopher L. Head
Design For Manufacturing Of Sports Equipment, Cedrick Bit, Christopher L. Head
Industrial and Manufacturing Engineering
The purpose of this project was to validate industrial designs for a product in its conceptual stage and suggest/implement design changes that suit the contracting company’s needs while assuring the product maintains its basic functional requirements. Techniques and methods used to validate the design include 3‐D solid modeling, physical product application using rapid prototyping to produce the product. Methods of design for manufacturing were analyzed in the design. Processes used in the validation and verification of the design include solid modeling design, methods of measurements, fixture design and manufacturing processes. Full design specifications and solid model files were finalized and …