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Background of principle - Jake Zwart
With an M.A.Sc. in Mechanical Engineering
and over 25 years of experience in research, development and
consulting, Jake brings a strong technical skill set along with a
thorough understanding of process industries, in particular, the paper
making process. His emphasis has been to add value to the operations by
utilizing these skills.
Much of the work done has been related
to dynamics. This has given him the skills to collect and interpret
data related to vibration including rotating machinery analysis, modal
analysis, operating deflection shape analysis and pressure pulsation
analysis. He has collaborated with a number of experts in the fields of
passive and active damping, self-excited vibration, and process control.
A partial list of problems that he has
worked on and solution procedures used, includes:
- measuring variability on paper
- making mill measurements to determine the source
of paper variability and recommend solutions
- performing wet end audits of the paper machine
- perform operating deflection shape analysis and
modal analysis to characterize the vibration of a paper machine headbox
- build a finite element model of a headbox to
stiffen the support structure
- winder vibration testing
- modal test on a TMP refiner to characterize its
modal (vibrational) properties
- modal test on automobiles and buses
- development of hand-arm vibration severity index
- torsional vibratio testing using telemetry system
- operating deflection shape analysis and modal
analysis on a refiner rotor
- finite element modeling of calender rolls to
determine the thermally induced distortion
- optimize the roll structure of reels from the paper
machine and the rolls from the winder
- thermal analysis of a super critical water
oxidation reaction process
- leading edge research on calender barring, a type
of self-excited vibration
- analyse soft calender vibration problems
- development of instrumentation used to increase
productivity and quality in a paper mill.
He has published papers and presented
seminars on paper uniformity, winder vibration, advanced vibration
analysis techniques, the effect of thermal distortion on a calender
stack and reel build optimization.
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