On the Use of Model Order Reduction Techniques for the Elastohydrodynamic Contact Problem

On the Use of Model Order Reduction Techniques for the Elastohydrodynamic Contact Problem PDF Author: Maier, Daniel
Publisher: KIT Scientific Publishing
ISBN: 3731503697
Category : Technology (General)
Languages : en
Pages : 182

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Book Description
The objective of this work is to develop a method which solves the nonlinear elastohydrodynamic contact problem in a fast and precise way using model order reduction techniques. The reduction procedure is based on a projection onto a low-dimensional subspace using different hyper-reduction procedures. The method provides fast and highly accurate reduced order models for stationary and transient, Newtonian and Non-Newtonian EHD line and point contact problems.

On the Use of Model Order Reduction Techniques for the Elastohydrodynamic Contact Problem

On the Use of Model Order Reduction Techniques for the Elastohydrodynamic Contact Problem PDF Author: Maier, Daniel
Publisher: KIT Scientific Publishing
ISBN: 3731503697
Category : Technology (General)
Languages : en
Pages : 182

Get Book Here

Book Description
The objective of this work is to develop a method which solves the nonlinear elastohydrodynamic contact problem in a fast and precise way using model order reduction techniques. The reduction procedure is based on a projection onto a low-dimensional subspace using different hyper-reduction procedures. The method provides fast and highly accurate reduced order models for stationary and transient, Newtonian and Non-Newtonian EHD line and point contact problems.

On the Use of Model Order Reduction Techniques for the Elastohydrodynamic Contact Problem

On the Use of Model Order Reduction Techniques for the Elastohydrodynamic Contact Problem PDF Author: Daniel Maier
Publisher:
ISBN: 9781013280634
Category : Technology & Engineering
Languages : en
Pages : 170

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Book Description
The objective of this work is to develop a method which solves the nonlinear elastohydrodynamic contact problem in a fast and precise way using model order reduction techniques. The reduction procedure is based on a projection onto a low-dimensional subspace using different hyper-reduction procedures. The method provides fast and highly accurate reduced order models for stationary and transient, Newtonian and Non-Newtonian EHD line and point contact problems. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.

Finite Element Modeling of Elastohydrodynamic Lubrication Problems

Finite Element Modeling of Elastohydrodynamic Lubrication Problems PDF Author: Wassim Habchi
Publisher: John Wiley & Sons
ISBN: 1119225124
Category : Technology & Engineering
Languages : en
Pages : 464

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Book Description
Covers the latest developments in modeling elastohydrodynamic lubrication (EHL) problems using the finite element method (FEM) This comprehensive guide introduces readers to a powerful technology being used today in the modeling of elastohydrodynamic lubrication (EHL) problems. It provides a general framework based on the finite element method (FEM) for dealing with multi-physical problems of complex nature (such as the EHL problem) and is accompanied by a website hosting a user-friendly FEM software for the treatment of EHL problems, based on the methodology described in the book. Finite Element Modeling of Elastohydrodynamic Lubrication Problems begins with an introduction to both the EHL and FEM fields. It then covers Standard FEM modeling of EHL problems, before going over more advanced techniques that employ model order reduction to allow significant savings in computational overhead. Finally, the book looks at applications that show how the developed modeling framework could be used to accurately predict the performance of EHL contacts in terms of lubricant film thickness, pressure build-up and friction coefficients under different configurations. Finite Element Modeling of Elastohydrodynamic Lubrication Problems offers in-depth chapter coverage of Elastohydrodynamic Lubrication and its FEM Modeling, under Isothermal Newtonian and Generalized-Newtonian conditions with the inclusion of Thermal Effects; Standard FEM Modeling; Advanced FEM Modeling, including Model Order Reduction techniques; and Applications, including Pressure, Film Thickness and Friction Predictions, and Coated EHL. This book: Comprehensively covers the latest technology in modeling EHL problems Focuses on the FEM modeling of EHL problems Incorporates advanced techniques based on model order reduction Covers applications of the method to complex EHL problems Accompanied by a website hosting a user-friendly FEM-based EHL software Finite Element Modeling of Elastohydrodynamic Lubrication Problems is an ideal book for researchers and graduate students in the field of Tribology.

An efficient solution procedure for elastohydrodynamic contact problems considering structural dynamics

An efficient solution procedure for elastohydrodynamic contact problems considering structural dynamics PDF Author: Schmidt, Jan Henrik
Publisher: KIT Scientific Publishing
ISBN: 3731508729
Category :
Languages : en
Pages : 165

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Book Description


Finite Element Modeling of Elastohydrodynamic Lubrication Problems

Finite Element Modeling of Elastohydrodynamic Lubrication Problems PDF Author: Wassim Habchi
Publisher: John Wiley & Sons
ISBN: 1119225159
Category : Technology & Engineering
Languages : en
Pages : 464

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Book Description
Covers the latest developments in modeling elastohydrodynamic lubrication (EHL) problems using the finite element method (FEM) This comprehensive guide introduces readers to a powerful technology being used today in the modeling of elastohydrodynamic lubrication (EHL) problems. It provides a general framework based on the finite element method (FEM) for dealing with multi-physical problems of complex nature (such as the EHL problem) and is accompanied by a website hosting a user-friendly FEM software for the treatment of EHL problems, based on the methodology described in the book. Finite Element Modeling of Elastohydrodynamic Lubrication Problems begins with an introduction to both the EHL and FEM fields. It then covers Standard FEM modeling of EHL problems, before going over more advanced techniques that employ model order reduction to allow significant savings in computational overhead. Finally, the book looks at applications that show how the developed modeling framework could be used to accurately predict the performance of EHL contacts in terms of lubricant film thickness, pressure build-up and friction coefficients under different configurations. Finite Element Modeling of Elastohydrodynamic Lubrication Problems offers in-depth chapter coverage of Elastohydrodynamic Lubrication and its FEM Modeling, under Isothermal Newtonian and Generalized-Newtonian conditions with the inclusion of Thermal Effects; Standard FEM Modeling; Advanced FEM Modeling, including Model Order Reduction techniques; and Applications, including Pressure, Film Thickness and Friction Predictions, and Coated EHL. This book: Comprehensively covers the latest technology in modeling EHL problems Focuses on the FEM modeling of EHL problems Incorporates advanced techniques based on model order reduction Covers applications of the method to complex EHL problems Accompanied by a website hosting a user-friendly FEM-based EHL software Finite Element Modeling of Elastohydrodynamic Lubrication Problems is an ideal book for researchers and graduate students in the field of Tribology.

On direct and inverse problems related to longitudinal impact of non-uniform elastic rods

On direct and inverse problems related to longitudinal impact of non-uniform elastic rods PDF Author: Burgert, Jens
Publisher: KIT Scientific Publishing
ISBN: 3731510871
Category : Technology & Engineering
Languages : en
Pages : 122

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Book Description
The impact of two non-uniform elastic rods is considered and a recursive method was developed that solves the inverse problem: Find the location-dependent impedance function of the impacting rod that generates a prescribed impact force. The developed method delivers exact solutions in closed-form. Moreover, a condition is derived which states if a physically meaningful solution exists. Finally, the underlying 1D model has been validated experimentally.

An Efficient Solution Procedure for Elastohydrodynamic Contact Problems Considering Structural Dynamics

An Efficient Solution Procedure for Elastohydrodynamic Contact Problems Considering Structural Dynamics PDF Author: Jan Henrik Schmidt
Publisher:
ISBN: 9781013278785
Category : Technology & Engineering
Languages : en
Pages : 154

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Book Description
This work presents an efficient solution procedure for the elastohydrodynamic (EHD) contact problem considering structural dynamics. The contact bodies are modeled using reduced finite element models. Singly diagonal implicit Runge-Kutta (SDIRK) methods are used for adaptive time integration. The structural model is coupled with the nonlinear Reynolds Equation using a monolithic coupling approach. Finally, a reduced order model of the complete nonlinear coupled problem is constructed. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.

On the Influence of Piecewise Defined Contact Geometries on Friction Dampers

On the Influence of Piecewise Defined Contact Geometries on Friction Dampers PDF Author: Aramendiz Fuentes, Jimmy Alberto
Publisher: KIT Scientific Publishing
ISBN: 373151267X
Category :
Languages : en
Pages : 180

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Book Description
This work considers dampers that do not solely focus on a single strategy but instead combine them. The capabilities of conventional dry friction dampers are expanded by taking into account piecewise defined contact geometries. This leads to friction dampers that change their behavior depending on the amplitude of the oscillations. The vibration damping device in this work, introduces damping at high oscillation amplitudes and takes advantage of absorption at low oscillation amplitudes.

Nonparametric identification of nonlinear dynamic systems

Nonparametric identification of nonlinear dynamic systems PDF Author: Kenderi, Gábor
Publisher: KIT Scientific Publishing
ISBN: 3731508346
Category :
Languages : en
Pages : 241

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Book Description


Model Order Reduction Techniques with Applications in Electrical Engineering

Model Order Reduction Techniques with Applications in Electrical Engineering PDF Author: L. Fortuna
Publisher: Springer Science & Business Media
ISBN: 1447131983
Category : Technology & Engineering
Languages : en
Pages : 242

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Book Description
Model Order Reduction Techniqes focuses on model reduction problems with particular applications in electrical engineering. Starting with a clear outline of the technique and their wide methodological background, central topics are introduced including mathematical tools, physical processes, numerical computing experience, software developments and knowledge of system theory. Several model reduction algorithms are then discussed. The aim of this work is to give the reader an overview of reduced-order model design and an operative guide. Particular attention is given to providing basic concepts for building expert systems for model reducution.