Applications of the Calculus by the Transfer Matrix Method for Long Rectangular Plates Under Uniform Vertical Loads

The aim of this work is to present an original, relatively simple, and elegant approach to the analysis of long rectangular plates subjected to uniformly distributed vertical loads acting on various surfaces. Plate analysis is important in many fields, especially where components are either rectangu...

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Main Authors: Cosmin-Sergiu Brisc, Mihai-Sorin Tripa, Ilie-Cristian Boldor, Dan-Marius Dumea, Robert Gyorbiro, Petre-Corneliu Opriţoiu, Laurenţiu Eusebiu Chifor, Ioan-Aurel Chereches, Vlad Mureşan, Mihaela Suciu
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Mathematics
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Online Access:https://www.mdpi.com/2227-7390/13/13/2181
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author Cosmin-Sergiu Brisc
Mihai-Sorin Tripa
Ilie-Cristian Boldor
Dan-Marius Dumea
Robert Gyorbiro
Petre-Corneliu Opriţoiu
Laurenţiu Eusebiu Chifor
Ioan-Aurel Chereches
Vlad Mureşan
Mihaela Suciu
author_facet Cosmin-Sergiu Brisc
Mihai-Sorin Tripa
Ilie-Cristian Boldor
Dan-Marius Dumea
Robert Gyorbiro
Petre-Corneliu Opriţoiu
Laurenţiu Eusebiu Chifor
Ioan-Aurel Chereches
Vlad Mureşan
Mihaela Suciu
author_sort Cosmin-Sergiu Brisc
collection DOAJ
description The aim of this work is to present an original, relatively simple, and elegant approach to the analysis of long rectangular plates subjected to uniformly distributed vertical loads acting on various surfaces. Plate analysis is important in many fields, especially where components are either rectangular plates or can be approximated as such. The Transfer Matrix Method is increasingly used in research, as evidenced by the references cited. The advantages of this method lie in the simplicity of its algorithm, the ease of implementation in programming, and its straightforward integration into optimization software. The approach consists of discretizing the rectangular plate by sectioning it with planes parallel to the short sides—i.e., perpendicular to the two long edges. This results in a set of beams, each with a length equal to the width of the plate, a height equal to the plate’s thickness, and a unit width. Each unit beam has support at its ends that replicate the edge conditions of the plate along its long sides. In the study presented, the rectangular plate is embedded along its two long edges, meaning the unit beam is considered embedded at both ends. The Transfer Matrix Method is particularly valuable because it lends itself well to iterative calculations, making it easy to develop software capable of analyzing long rectangular plates quickly. This makes it especially useful for shape optimization applications, which we intend and hope to pursue in future studies.
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spelling doaj-art-aa321ca220964c5e90df94c793b50cd12025-08-20T03:28:26ZengMDPI AGMathematics2227-73902025-07-011313218110.3390/math13132181Applications of the Calculus by the Transfer Matrix Method for Long Rectangular Plates Under Uniform Vertical LoadsCosmin-Sergiu Brisc0Mihai-Sorin Tripa1Ilie-Cristian Boldor2Dan-Marius Dumea3Robert Gyorbiro4Petre-Corneliu Opriţoiu5Laurenţiu Eusebiu Chifor6Ioan-Aurel Chereches7Vlad Mureşan8Mihaela Suciu9Department of Mechanical Engineering, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, RomaniaDepartment of Design Engineering and Robotics, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, RomaniaDepartment of Mechanical Engineering, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, RomaniaDepartment of Mechanical Engineering, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, RomaniaDepartment of Mechanical Engineering, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, RomaniaDepartment of Land Measurements and Cadaster, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, RomaniaDepartment of Automation, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, RomaniaDepartment of Road Vehicles and Transport, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, RomaniaDepartment of Automation, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, RomaniaDepartment of Mechanical Engineering, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, RomaniaThe aim of this work is to present an original, relatively simple, and elegant approach to the analysis of long rectangular plates subjected to uniformly distributed vertical loads acting on various surfaces. Plate analysis is important in many fields, especially where components are either rectangular plates or can be approximated as such. The Transfer Matrix Method is increasingly used in research, as evidenced by the references cited. The advantages of this method lie in the simplicity of its algorithm, the ease of implementation in programming, and its straightforward integration into optimization software. The approach consists of discretizing the rectangular plate by sectioning it with planes parallel to the short sides—i.e., perpendicular to the two long edges. This results in a set of beams, each with a length equal to the width of the plate, a height equal to the plate’s thickness, and a unit width. Each unit beam has support at its ends that replicate the edge conditions of the plate along its long sides. In the study presented, the rectangular plate is embedded along its two long edges, meaning the unit beam is considered embedded at both ends. The Transfer Matrix Method is particularly valuable because it lends itself well to iterative calculations, making it easy to develop software capable of analyzing long rectangular plates quickly. This makes it especially useful for shape optimization applications, which we intend and hope to pursue in future studies.https://www.mdpi.com/2227-7390/13/13/2181Transfer Matrix MethodDirac’s function and operatorsHeaviside’s function and operatorsunit beamembedded edgestate vector
spellingShingle Cosmin-Sergiu Brisc
Mihai-Sorin Tripa
Ilie-Cristian Boldor
Dan-Marius Dumea
Robert Gyorbiro
Petre-Corneliu Opriţoiu
Laurenţiu Eusebiu Chifor
Ioan-Aurel Chereches
Vlad Mureşan
Mihaela Suciu
Applications of the Calculus by the Transfer Matrix Method for Long Rectangular Plates Under Uniform Vertical Loads
Mathematics
Transfer Matrix Method
Dirac’s function and operators
Heaviside’s function and operators
unit beam
embedded edge
state vector
title Applications of the Calculus by the Transfer Matrix Method for Long Rectangular Plates Under Uniform Vertical Loads
title_full Applications of the Calculus by the Transfer Matrix Method for Long Rectangular Plates Under Uniform Vertical Loads
title_fullStr Applications of the Calculus by the Transfer Matrix Method for Long Rectangular Plates Under Uniform Vertical Loads
title_full_unstemmed Applications of the Calculus by the Transfer Matrix Method for Long Rectangular Plates Under Uniform Vertical Loads
title_short Applications of the Calculus by the Transfer Matrix Method for Long Rectangular Plates Under Uniform Vertical Loads
title_sort applications of the calculus by the transfer matrix method for long rectangular plates under uniform vertical loads
topic Transfer Matrix Method
Dirac’s function and operators
Heaviside’s function and operators
unit beam
embedded edge
state vector
url https://www.mdpi.com/2227-7390/13/13/2181
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