Two-factor optimization in the brachistochrone problem

The paper puts forward a new modification of the well-known brachistochrone problem. The joint account of minimizing the motion time and the trajectory length in their functional relationship has been introduced. A two-factor optimization criterion (TOC) was constructed in the form of a product of t...

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Main Authors: Smirnov Alexey, Suvorov Sergei
Format: Article
Language:English
Published: Peter the Great St.Petersburg Polytechnic University 2022-06-01
Series:St. Petersburg Polytechnical University Journal: Physics and Mathematics
Subjects:
Online Access:https://physmath.spbstu.ru/article/2022.56.11/
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author Smirnov Alexey
Suvorov Sergei
author_facet Smirnov Alexey
Suvorov Sergei
author_sort Smirnov Alexey
collection DOAJ
description The paper puts forward a new modification of the well-known brachistochrone problem. The joint account of minimizing the motion time and the trajectory length in their functional relationship has been introduced. A two-factor optimization criterion (TOC) was constructed in the form of a product of two particular criteria, which made it possible to find the best compromise between them. On the TOC basis a solution to the problem of a two-factor brachistochrone was obtained using a preliminary consideration of the auxiliary problem on a brachistochrone with a given length. A rational practical solution of the problem was proposed. It was characterized by a simpler geometry than the strictly optimal one: to adopt a circular arc with a central angle selected on the basis of the taken TOC.
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spelling doaj.art-73ef3d74f80d45268d7a5b6ed2cf4f1b2022-12-22T02:43:17ZengPeter the Great St.Petersburg Polytechnic UniversitySt. Petersburg Polytechnical University Journal: Physics and Mathematics2405-72232022-06-0115210.18721/JPM.1521120714726Two-factor optimization in the brachistochrone problemSmirnov Alexey0https://orcid.org/0000-0002-6148-0322Suvorov Sergei1https://orcid.org/0000-0002-7461-2742Peter the Great St. Petersburg Polytechnic UniversityCentral Design Bureau of Transport EngineeringThe paper puts forward a new modification of the well-known brachistochrone problem. The joint account of minimizing the motion time and the trajectory length in their functional relationship has been introduced. A two-factor optimization criterion (TOC) was constructed in the form of a product of two particular criteria, which made it possible to find the best compromise between them. On the TOC basis a solution to the problem of a two-factor brachistochrone was obtained using a preliminary consideration of the auxiliary problem on a brachistochrone with a given length. A rational practical solution of the problem was proposed. It was characterized by a simpler geometry than the strictly optimal one: to adopt a circular arc with a central angle selected on the basis of the taken TOC.https://physmath.spbstu.ru/article/2022.56.11/brachistochroneoptimizationmotion timetrajectory lengthtwo-factor criterionrational solution
spellingShingle Smirnov Alexey
Suvorov Sergei
Two-factor optimization in the brachistochrone problem
St. Petersburg Polytechnical University Journal: Physics and Mathematics
brachistochrone
optimization
motion time
trajectory length
two-factor criterion
rational solution
title Two-factor optimization in the brachistochrone problem
title_full Two-factor optimization in the brachistochrone problem
title_fullStr Two-factor optimization in the brachistochrone problem
title_full_unstemmed Two-factor optimization in the brachistochrone problem
title_short Two-factor optimization in the brachistochrone problem
title_sort two factor optimization in the brachistochrone problem
topic brachistochrone
optimization
motion time
trajectory length
two-factor criterion
rational solution
url https://physmath.spbstu.ru/article/2022.56.11/
work_keys_str_mv AT smirnovalexey twofactoroptimizationinthebrachistochroneproblem
AT suvorovsergei twofactoroptimizationinthebrachistochroneproblem