FEM based modelling and control of temperature field in extruder barrel

Piezothermoelasticity and Control of Piezoelectric Laminates Exposed to a Steady-State Temperature Field

14th Biennial Conference on Mechanical Vibration and Noise: Intelligent Structures, Materials, and Vibrations ◽

10.1115/detc1993-0155 ◽

1993 ◽

Author(s):

H. S. Tzou ◽

R. Ye

Keyword(s):

Temperature Field ◽

Steady State ◽

Degrees Of Freedom ◽

Sensors And Actuators ◽

System Equation ◽

Thermal Fields ◽

Steady State Temperature ◽

And Control ◽

Internal Degrees Of Freedom

Abstract Piezothermoelastic effects of distributed piezoelectric sensors and actuators are investigated. Vibration control of piezoelectric laminates subjected to a steady-state temperature field is studied. A new 3-D piezothermoelastic finite element with three internal degrees of freedom is formulated using a variational formulation. A system equation for the piezoelectric continuum exposed to combined elastic, electric, and thermal fields is formulated. Distributed sensing and control equations are derived. All these effects are studied in a case study.

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Modeling and control of the temperature field in jet dispensing valve

2016 17th International Conference on Electronic Packaging Technology (ICEPT) ◽

10.1109/icept.2016.7583124 ◽

2016 ◽

Author(s):

Weisong Li ◽

Xiuyang Shan ◽

Haining Zhang

Keyword(s):

Temperature Field ◽

Modeling And Control ◽

And Control

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Modelling and Control of Extruder Barrel Temperature Field

IFAC Proceedings Volumes ◽

10.3182/20130925-3-fr-4043.00078 ◽

2013 ◽

Vol 46 (26) ◽

pp. 191-196 ◽

Cited By ~ 2

Author(s):

Slavomír Lipár ◽

Pavol Noga ◽

Gabriel Hulkó

Keyword(s):

Temperature Field ◽

And Control

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Piezothermoelasticity and Precision Control of Piezoelectric Systems: Theory and Finite Element Analysis

Journal of Vibration and Acoustics ◽

10.1115/1.2930454 ◽

1994 ◽

Vol 116 (4) ◽

pp. 489-495 ◽

Cited By ~ 134

Author(s):

H. S. Tzou ◽

R. Ye

Keyword(s):

Finite Element ◽

Temperature Field ◽

Degrees Of Freedom ◽

Piezoelectric Sensor ◽

Temperature Fields ◽

Element Analysis ◽

Energy Functionals ◽

System Equation ◽

Distributed Controls ◽

And Control

Piezothermoelastic effects of distributed piezoelectric sensor/actuator and structural systems are studied. Distributed controls (static and dynamic) of piezoelectric laminates subjected to a steady-state temperature field are investigated. Piezothermoelastic constitutive equations are defined, followed by three energy functionals for the displacement, electric, and temperature fields, respectively. A new 3-D piezothermoelastic thin hexahedron finite element with three internal degrees of freedom is formulated using a variational formulation which includes thermal, electric, and mechanical energies. A system equation for the piezoelectric continuum exposed to combined displacement, electric, and temperature fields is formulated. Distributed sensing and control equations of piezoelectric laminates in a temperature field are derived. Thermal influences on the sensing and control of piezoelectric PZT/steel laminates are investigated in case studies.

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Modeling of Free-Burning Arc and Effects of Boundary Conditions on the Anode Temperature Field

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.551.429 ◽

2014 ◽

Vol 551 ◽

pp. 429-433

Author(s):

Bo Ao Xu ◽

Bin Chen ◽

Qiang Chen ◽

Long Dou

Keyword(s):

Temperature Field ◽

Pressure Field ◽

Industrial Applications ◽

Mhd Equations ◽

Anode Surface ◽

Two Dimensional ◽

Heat Transfer Mechanism ◽

Anode Temperature ◽

And Control ◽

Anode Sheath

A two dimensional numerical model of the free-burning arc and its interaction with anode are given. The commercial CFD code FLUENT is used to model the plasma and the solid anode part. The anode sheath is considered, as well as the heat transfer mechanism of the anode surface. The second boundary condition of heat conduction is introduced to give a more reasonable cooling boundary, so that the temperature distribution in the anode plate is more realistic. Through iteration calculation of steady MHD equations, the temperature field, pressure field and velocity field profiles are given. The result is of significant use to analysis thermal and control the electric power in the arc industrial applications.

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Temperature Field Regulation in Thermal Cutting for Layered Manufacturing

Journal of Manufacturing Science and Engineering ◽

10.1115/1.2832701 ◽

1999 ◽

Vol 121 (3) ◽

pp. 440-447 ◽

Cited By ~ 3

Author(s):

N. Fourligkas ◽

C. Doumanidis

Keyword(s):

Temperature Field ◽

Thermal Processing ◽

Pole Placement ◽

Time Variability ◽

Material Structure ◽

Source Power ◽

Modeling And Control ◽

Thermal Sensing ◽

Process Disturbances ◽

And Control

A general thermal modeling and control methodology for thermal processing of layered materials for rapid prototyping technologies is established in this article. An analytical multivariable model of lumped temperature outputs generated by heat inputs on a surface grid is developed, based on Green’s function and state-space descriptions. The few independent parameters needed in such a linearized formulation are experimentally identified, and their time-variability reflects the heat transfer nonlinearities and process disturbances. A robust controller with thermal feedback is designed by pole placement methods, to obtain a specified dynamic temperature field yielding the desired material structure and properties. The regulated thermal processing is optimized in real time by proper heat source power modulation and torch guidance through a simulated annealing strategy. Its performance is tested on both the computer model and a laboratory station, using robotically guided plasma-arc cutting and infrared thermal sensing, in regulating the sensitized zone during blanking of an elementary contour pattern on stainless steel.

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Modeling and Control of the Temperature Field of Oil Well Equipped with a Heating Cable

Lecture Notes in Electrical Engineering - Advances in Automation II ◽

10.1007/978-3-030-71119-1_27 ◽

2021 ◽

pp. 265-274

Author(s):

N. Kostarev ◽

N. Trufanova

Keyword(s):

Temperature Field ◽

Oil Well ◽

Modeling And Control ◽

Heating Cable ◽

And Control

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Experimental Research on the Temperature Field of High and Hollow-Thin Pier

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.256-259.714 ◽

2012 ◽

Vol 256-259 ◽

pp. 714-718

Author(s):

Jian Cheng Sun ◽

Zhong Le Zhang ◽

Qing Yi Xiao

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Temperature Field ◽

Tensile Stress ◽

Experimental Research ◽

Temperature Difference ◽

Hydration Heat ◽

Element Analysis ◽

The Finite Element Analysis ◽

And Control

To study the temperature field changing regulation of hydration heat and control concrete cracks caused by great temperature difference in the construction of hollow-thin pier, testing the temperature field of the high and hollow-thin pier of Cha Jiugou Bridge and it got changing regulation of the temperature. The finite element analysis on the pier was also carried out and the temperature stress contours and curves of the hydration heat of the concrete are obtained. It can be seen that the outer surface and the center of the pier are compressive within 10 hours in the pouring early. With the temperature difference, the center generates the compressive stress, the surface generates tensile stress.

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