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Articles 1 - 5 of 5

Full-Text Articles in Mechanical Engineering

Ole Miss Engineer 2011-2012 Dec 2011

Ole Miss Engineer 2011-2012

The Ole Miss Engineer

No abstract provided.


Comparison Of Computational And Experimental Aerodynamics: Results For A Wmu Solar Car Model, Yang Yang, William W. Liou Sep 2011

Comparison Of Computational And Experimental Aerodynamics: Results For A Wmu Solar Car Model, Yang Yang, William W. Liou

The Hilltop Review

Three-dimensional numerical simulations using FLUENT [1] were performed to model the airflow over the Sunseeker, an award-winning solar car that was designed and built at Western Michigan University. Converged numerical solutions on three different grids are reported and compared with the available experimental data, which include the lift and the drag coefficients. Also reported are the results obtained by using the second-order upwinding discretization on one of the grids. The comparison shows that the computed lift coefficients agree well with the experimental data for all the three grids and the different orders of numerical methods, indicating that the pressure field ...


Residual Stress Analysis Of Composite Cannon Barrel, Tyler Brockel, Ozan Ozdemir Jan 2011

Residual Stress Analysis Of Composite Cannon Barrel, Tyler Brockel, Ozan Ozdemir

The Journal of Undergraduate Research

The objective of this paper is to describe the process and results of a residual stress analysis done on a composite cannon barrel. A cross section of a full cannon barrel was cut off to be used in the analysis. The barrel cross section was composed of an inner steel layer that was wrapped in an outer composite layer. The residual stress analysis was done using x-ray diffraction (XRD). The XRD machine uses different types of x-ray tubes based on what material it is analyzing. For this reason, the first portion of the experiment dealt with finding the exact material ...


Vibrational Analysis Of Soloflex Whole Body Vibration Platform, Zachary Croatt, Josh Robers Jan 2011

Vibrational Analysis Of Soloflex Whole Body Vibration Platform, Zachary Croatt, Josh Robers

The Journal of Undergraduate Research

A Soloflex Whole Body Vibration (WBV) Platform was tested for its frequency and magnitude of vibration at multiple settings on the supplied dial. An accelerometer was used to measure the vibrations on different points mapped across the platform. The motor attached to the board was also tested for its frequency using a high-speed camera. The amplitude measurements found from the accelerometer data was compared to the readings on the supplied control module to “calibrate” the platform for medical testing.


Vibrational Analysis Of An Electromechanical Toothbrush, Mark Wager Jan 2011

Vibrational Analysis Of An Electromechanical Toothbrush, Mark Wager

The Journal of Undergraduate Research

The effectiveness of an electromechanical toothbrush is based entirely on its ability to remove plaque through vibrations. This paper contests that the three-dimensional motion of more inexpensive models of electromechanical toothbrushes can be accurately modeled in one-dimension so as to predict the motion of future toothbrush designs using simply the material properties, motor specifications, and grip design. Vibrational modeling, mathematical modeling, and experimentation were used in the analysis to confirm the outcome of the study and the assumptions of the model.