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Full-Text Articles in Mechanical Engineering
Automating The Fret Slotting Process Using A Plc Controlled 1.5 Axis Mill, James Stratton
Automating The Fret Slotting Process Using A Plc Controlled 1.5 Axis Mill, James Stratton
Purdue Polytechnic Masters Theses
Stratton, James A. M.S., Purdue University, August 2011. Automating the Fret Slotting Process Using a PLC Controlled 1.5 Axis CNC Mill. Major Professor: Richard Mark French.
Can automation assist small job shops and hobbyists in the production of stringed instruments? This research set out to answer the question using a quantitative approach to determine if an economical CNC machine could be produced in such a fashion as to seamlessly join the workshop as an affordable, yet precise instrument to aid in the production of stringed instruments. The key was to incorporate common industrial automation equipment into the operation of the …
Quantifying Multiple Types Of Damping Acting On Bronze-Wound Guitar Strings, Jonathan Christian
Quantifying Multiple Types Of Damping Acting On Bronze-Wound Guitar Strings, Jonathan Christian
Purdue Polytechnic Masters Theses
The goal of this study was to quantify the contributions of multiple damping types acting on guitar strings for each mode over a wide frequency range so that design variables could be identified to one day create frequency based damping in guitar strings. Structural dynamic testing was used to obtain the time-response of a vibrating string in open air and in a vacuum. From this signal, each harmonic was filtered and the decay envelope was curve-fitted with a function that was a linear summation of decay functions. From the curve-fits, the damping coefficients for aerodynamic, friction, and material damping were …
Control System For Mass Spectrometer, Jian Xu
Control System For Mass Spectrometer, Jian Xu
Purdue Polytechnic Masters Theses
Mass spectrometry (MS) is a very popular analytical methodology that measures the mass of ions using a mass spectrometer. It is widely used for determining masses of chemicals, the elemental composition of a sample and molecule structure. The process of mass spectrometry normally consists of ionizing chemical compounds to ions and measuring their ratios of mass to charge for analysis.
MS instruments consist of three modules: Ionization, Analysis and detection. A LabVIEW system was developed to control the three modules of a mass spectrometer, giving the required signals in a right sequence. Experiments can be carried out by using the …