Optimal Control of Vitrifying Polymers Cooling Process to Reduce Residual Stresses

Mikhail G. Boyarshinov; Irina N. Boyarshinova

doi:10.4028/www.scientific.net/SSP.243.23

Paper Titles

Preface and Organizing Committee

Experimental-Theoretical Research of Mechanical Properties of Perforated Composite Sandwich Panels
p.1

Estimation of Salt Rocks’ Long-Term Strength in Natural Conditions
p.11

Mathematical Modelining of Underworked Rock Strata Failure Process
p.17

Optimal Control of Vitrifying Polymers Cooling Process to Reduce Residual Stresses
p.23

Experimental Study of Nonlinear Effects under Torsion of the Uniform Cylinder with Initially Circular Cross Section
p.29

Analysis of Thermal Conditions within the Flow Conduits of MHD-Devices
p.35

Simulation of the Energy Balance in Metals under Irreversible Deformation
p.43

Effect of Boundary Conditions on the Hydroelastic Vibrations of Two Parallel Plates
p.51

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Optimal Control of Vitrifying Polymers Cooling Process to Reduce Residual Stresses

Abstract:

This paper’s purpose is analyzing a problem of optimal control of vitrifying polymers cooling process. A solution methodology is suggested targeting at decreasing technological residual stresses, which predetermine major operating characteristics of polymer structures. The criteria function to be minimized is maximum intensity of technological residual stresses under minimum cooling process time. To determine technological residual stresses, a problem of thermoviscoelasticity is solved in finite-elemental formulation. The chosen mathematical model of mechanical behavior of viscoelastic bodies under thermorelaxation transition allows to formulate and to solve the problem of cooling process optimal control. Obtained results show that application of optimal control methods to vitrifying polymers cooling process lead to tenfold decrease of technological residual stresses when compared to an uncontrolled process.

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Periodical:

Solid State Phenomena (Volume 243)

Pages:

23-28

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.243.23

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Online since:

October 2015

Authors:

Mikhail G. Boyarshinov*, Irina N. Boyarshinova

Keywords:

Criteria Function, Optimal Control, Technological Residual Stresses, Vitrifying Polymer

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