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Articles 1 - 15 of 15
Full-Text Articles in Automotive Engineering
Volumetric Flank Wear Characterization For Titanium Milling Insert Tools, Uli Burger, Mathew Kuttolamadom, April Bryan, Laine Mears, Thomas Kurfess
Volumetric Flank Wear Characterization For Titanium Milling Insert Tools, Uli Burger, Mathew Kuttolamadom, April Bryan, Laine Mears, Thomas Kurfess
Publications
Machining wear models are useful for the prediction of tool life and the estimation of machining productivity. Existing wear models relate the cutting parameters of feed, speed, and depth of cut to tool wear. The tool wear is often reported as changes in flank width or crater depth. However, these one-dimensional wear measurements do not fully characterize the tool condition when tools wear by other types of wear such as notching, chipping, and adhesion. This is especially true when machining difficult-to-machine materials such as titanium. This paper proposes another approach for characterizing tool wear. It is based on taking measurements …
Analysis And Modeling Of Motor Vehicle Crashes Involving Air Force Military Personnel, Antonios Markopoulos
Analysis And Modeling Of Motor Vehicle Crashes Involving Air Force Military Personnel, Antonios Markopoulos
Theses and Dissertations
The primary purpose of this thesis was to improve the data analysis of Motor Vehicle Crashes (MVCs). This thesis employed the Air Force Safety Center (AFSC) data, collected over 20 years, of MVCs in which US Air Force (USAF) military personnel are involved when off duty and off base. Categorical Data Analysis and Analysis of Variance (ANOVA) were applied to identify risk factors related to MVCs and influence the severity of injuries and those factors associated with the alcohol consumption before driving, and affect the number of lost workdays resulting from MVCs. Categorical Data Analysis showed that male USAF members …
Stability Analysis, Modeling, Simulation And Experimental Testing Of An Ems Maglev System With Structural Flexibility, Aravind M. Hanasoge
Stability Analysis, Modeling, Simulation And Experimental Testing Of An Ems Maglev System With Structural Flexibility, Aravind M. Hanasoge
Mechanical & Aerospace Engineering Theses & Dissertations
Vehicle-guideway interaction studies of Magnetically Levitated (Maglev) vehicles indicate that structural flexibility can adversely affect the overall stability and performance of such systems. This is one of the reasons why guideways are generally made very rigid. This in turn leads to increased cost of the overall system since guideway construction forms a significant portion of the overall cost. In this dissertation, the influence of structural flexibility on the stability of Electromagnetic Suspension (EMS) Maglev systems is studied. It is shown how inherently unstable and flexible structure EMS Maglev systems can achieve guaranteed stability by using collocated actuators and sensors, along …
Review: 'Fighting Traffic: The Dawn Of The Motor Age In The American City', John Alfred Heitmann
Review: 'Fighting Traffic: The Dawn Of The Motor Age In The American City', John Alfred Heitmann
History Faculty Publications
During the early 1960s, as the Golden Age of the automobile in America began to wane, several commentators, including Lewis Mumford, raised the critical question of whether the automobile existed for the modern city or the city for the automobile. How and when the automobile became central to urban life is deftly addressed in Peter Norton’s Fighting Traffic: The Dawn of the Motor Age in the American City. This study is certainly one of the most important monographs focusing on the place of the automobile in American society within a historical context to appear in recent times; it interestingly supplements …
Enhancing Engine Block Quality By Reducing Metal Chips In Porosities - A Case Study, Santosh Kumar Kurella
Enhancing Engine Block Quality By Reducing Metal Chips In Porosities - A Case Study, Santosh Kumar Kurella
Morehead State Theses and Dissertations
A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Santosh Kumar Kurella on March 25, 2009.
Warning! Engineers In Training: Introducing Middle School Students To Industrial Engineering, Its Usefulness, And Its Applications, M. Grubb, A. Berger, D. Browning, M. Mayorga, Laine Mears
Warning! Engineers In Training: Introducing Middle School Students To Industrial Engineering, Its Usefulness, And Its Applications, M. Grubb, A. Berger, D. Browning, M. Mayorga, Laine Mears
Publications
The McCants Middle School Pre-engineering class is designed to teach engineering skills to students with a predisposition for and interest in math and science. This team’s initiative is to use Industrial Engineering tools to enhance the existing pre-engineering course curriculum. The purpose of this study is to make middle school students better aware of an engineer’s thought process as it pertains to effectively planning and working on projects, and to measure the impact of our influence. Through this study, we want to improve the overall quality of the student’s projects and ultimately increase the retention and quantity of students interested …
Wireless Local Positioning System, Seyed A. Zekavat
Wireless Local Positioning System, Seyed A. Zekavat
Michigan Tech Patents
A method of locating mobiles via a dynamic base station. The method includes transmitting a first wireless signal from the dynamic base station at a first time, and receiving the first wireless signal at the mobile. The method also includes transmitting a second wireless signal from the mobile in response to receiving the first wireless signal, and receiving the second wireless signal at the dynamic base station at a second time. The method also includes determining a time difference between the first time and the second time, determining an angle of arrival of the second wireless signal, and locating the …
Automobile Industry, John Alfred Heitmann
Automobile Industry, John Alfred Heitmann
History Faculty Publications
During the 1990s, the American automobile industry was transformed in terms of products, leadership strategies, organization, and technology. Increasingly, the American industry has evolved into part of a global web of manufacturers, parts suppliers, and consumers.
Drive-By Shootings, John Alfred Heitmann
Drive-By Shootings, John Alfred Heitmann
History Faculty Publications
Although often associated with Southern California and young gang behavior, the drive-by shooting became commonplace during the 1990s across America.
Auto Racing, John Alfred Heitmann
Auto Racing, John Alfred Heitmann
History Faculty Publications
As a consequence of new sponsors, personalities, race tracks, and television exposure, automobile racing — and in particular NASCAR — reached unprecedented popularity during the 1990s. Indeed, NASCAR became a "way of life" for many Americans.
Comment On "Three-Dimensional Ascent Trajectory Optimization For Stratospheric Airship Platforms In The Jet Stream", Nathan Slegers, Ainsmar X. Brown
Comment On "Three-Dimensional Ascent Trajectory Optimization For Stratospheric Airship Platforms In The Jet Stream", Nathan Slegers, Ainsmar X. Brown
Faculty Publications - Biomedical, Mechanical, and Civil Engineering
No abstract provided.
Exploiting A Gsm Network For Precise Payload Delivery, Eugene A. Bourakov, Oleg A. Yakimenko, Nathan Slegers
Exploiting A Gsm Network For Precise Payload Delivery, Eugene A. Bourakov, Oleg A. Yakimenko, Nathan Slegers
Faculty Publications - Biomedical, Mechanical, and Civil Engineering
This paper introduces the novel concept of using a GSM network for command of and communications with multiple aerial delivery systems. The research prototype of such a system, Snowflake-N, allows communicating with other network clients via a commercial Blackberry Curve 8310 handheld over a Bluetooth connection. A new architecture allows reassigning targets and sending other relevant commands (via web interface, by voice, data, or text messages) to an onboard autopilot, which is within a network reach, from any place in the world. Similarly, a current position of the descending system and target assignment can be viewed from any computer connected …
Development And Testing Of The Miniature Aerial Delivery System Snowflake, Oleg A. Yakimenko, Nathan Slegers, Robyn A. Tiaden
Development And Testing Of The Miniature Aerial Delivery System Snowflake, Oleg A. Yakimenko, Nathan Slegers, Robyn A. Tiaden
Faculty Publications - Biomedical, Mechanical, and Civil Engineering
This paper discusses the current status of the development of the miniature aerial delivery system to be further employed in a variety of different research projects. It starts from the overall description of the system and proceeds with the discussion of the test results performed so far. Specifically, it addresses the effects of the changing ground winds on touchdown accuracy. The paper ends with conclusions and recommendations.
Optimal Control For Terminal Guidance Of Autonomous Parafoils, Nathan Slegers, Oleg A. Yakimenko
Optimal Control For Terminal Guidance Of Autonomous Parafoils, Nathan Slegers, Oleg A. Yakimenko
Faculty Publications - Biomedical, Mechanical, and Civil Engineering
This paper deals with the development of guidance, navigation and control algorithms for a prototype of a miniature aerial delivery system capable of high-precision maneuvering and high touchdown accuracy. High accuracy enables use in precision troop resupply, sensor placement, urban warfare reconnaissance, and other similar operations. Specifically, this paper addresses the terminal phase, where uncertainties in winds cause most of the problems. The paper develops a six degree-of-freedom model to adequately address dynamics and kinematics of the prototype delivery system and then reduces it to a two degrees-of-freedom model to develop a model predictive control algorithm for reference trajectory tracking …
Understanding Practical Limits To Heavy Truck Drag Reduction, Drew Landman, Richard Wood, Whitney Seay, John Bledsoe
Understanding Practical Limits To Heavy Truck Drag Reduction, Drew Landman, Richard Wood, Whitney Seay, John Bledsoe
Mechanical & Aerospace Engineering Faculty Publications
A heavy truck wind tunnel test program is currently underway at the Langley Full Scale Tunnel (LFST). Seven passive drag reducing device configurations have been evaluated on a heavy truck model with the objective of understanding the practical limits to drag reduction achievable on a modern tractor trailer through add-on devices. The configurations tested include side skirts of varying length, a full gap seal, and tapered rear panels. All configurations were evaluated over a nominal 15 degree yaw sweep to establish wind averaged drag coefficients over a broad speed range using SAE J1252. The tests were conducted by first quantifying …