Geodesic
Realization of the brachistochronic motion of Chaplygin sleigh in a vertical plane with an unilateral nonholonomic constraint
Theoretical and applied mechanics, Tome 50 (2023) no. 2, p. 171

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The paper considers the procedure for determining the brachistochronic motion of the Chaplygin sleigh in a vertical plane, where the blade is such that it prevents the motion of the contact point in one direction only. The position of the sleigh mass center and orientation at the final positions is specified, as well as the initial value of mechanical energy. The simplest formulation of a corresponding optimal control problem is given and it is solved by applying Pontryagin’s maximum principle. For some cases, analytical solutions of differential equations of the two-point boundary value problem (TPBVP) of the maximum principle were found. Numerical integration was carried out for other cases using the shooting method, where the assessment of missing terminal conditions was given and it was shown that the solution obtained represents the global minimum time for the brachistochronic motion. The method of the brachistochronic motion by means of a single holonomic and a single unilateral nonholonomic mechanical constraint is presented.
DOI : 10.2298/TAM231017011O
Classification : 70E18, 70Q05, 49N90
Keywords: Chaplygin sleigh, maximum principle, unilateral nonholonomic constraint, analytical solutions 
Aleksandar M. Obradović; Oleg Yu. Cherkasov; Luka N. Miličić; Slaviša Salinić. Realization of the brachistochronic motion of Chaplygin sleigh in a vertical plane with an unilateral nonholonomic constraint. Theoretical and applied mechanics, Tome 50 (2023) no. 2, p. 171 . doi: 10.2298/TAM231017011O
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     author = {Aleksandar M. Obradovi\'c and Oleg Yu. Cherkasov and Luka N. Mili\v{c}i\'c and Slavi\v{s}a Salini\'c},
     title = {Realization of the brachistochronic motion of {Chaplygin} sleigh in a vertical plane with an unilateral nonholonomic constraint},
     journal = {Theoretical and applied mechanics},
     pages = {171 },
     year = {2023},
     volume = {50},
     number = {2},
     doi = {10.2298/TAM231017011O},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/TAM231017011O/}
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