Open Access. Powered by Scholars. Published by Universities.®

Automotive Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 9 of 9

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 Oct 2009

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 ...


Stability Analysis, Modeling, Simulation And Experimental Testing Of An Ems Maglev System With Structural Flexibility, Aravind M. Hanasoge Jul 2009

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 Jun 2009

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 ...


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 May 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

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 ...


Wireless Local Positioning System, Seyed A. Zekavat Feb 2009

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 Jan 2009

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 Jan 2009

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 Jan 2009

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.


Understanding Practical Limits To Heavy Truck Drag Reduction, Drew Landman, Richard Wood, Whitney Seay, John Bledsoe Jan 2009

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 ...