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Background of principle - Jake Zwart
With an M.A.Sc. in Mechanical Engineering and over 30 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
- 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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