Results 1 to 10 of about 93 (67)
Optimal Auxiliary Functions Method for a Pendulum Wrapping on Two Cylinders
Mathematics, 2020 In the present work, the nonlinear oscillations of a pendulum wrapping on two cylinders is studied by means of a new analytical technique, namely the Optimal Auxiliary Functions Method (OAFM).
Vasile Marinca, Nicolae Herisanu
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Optimal Auxiliary Functions Method for viscous flow due to a stretching surface with partial slip
Open Engineering, 2018 The viscous flow induced by a stretching surface with partial slip is investigated. The flow is governed by a third-order nonlinear differential equation, corresponding to the planar and axisymmetric stretching.
Marinca Vasile +2 more
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Partial Differential Equations in Applied MathematicsThe study aims to obtain new approximate analytical solutions for the fractional order nonlinear Foam Drainage equation through a novel modification of the well-known Optimal Auxiliary Functions Method (OAFM).
Mimoon Ismael +4 more
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Mathematics, 2021 In this paper, a new approach is proposed to analyze the behavior of a nonlinear two-degree-of-freedom vibro-impact oscillator subject to a harmonic perturbing force, based on a combination of analytical and numerical approaches.
Nicolae Herisanu, Vasile Marinca
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Mathematics, 2022 The main objective of the present work is to find an approximate analytical solution for the nonlinear differential equation of the vibro-impact oscillator under the influence of the electromagnetic actuation near the primary resonance.
Nicolae Herisanu +2 more
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Mathematics, 2023 In this work, the effect of vibro-impact nonlinear, forced, and damped oscillator on the dynamics of the electromagnetic actuation (EA) near primary resonance is studied. The vibro-impact regime is given by the presence of the Hertzian contact. The EA is
Nicolae Herisanu +3 more
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An Efficient Analytical Approach to Investigate the Dynamics of a Misaligned Multirotor System
Mathematics, 2020 This paper deals with the analytical investigation of a multirotor system connected by a flexible coupling subjected to dynamic angular misalignment. A novel analytical approach is employed for this purpose, namely the optimal auxiliary functions method,
Nicolae Herisanu, Vasile Marinca
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Results in Physics, 2021 In the present article, we present for the first time optimal auxiliary function method (OAFM) for partial differential equation (PDEs). To find efficient and precision the proposed method, we take Lax’s seventh order korteweg-de Vries (KdV) and seventh ...
Laiq Zada +5 more
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Value Analysis of the Machine-Building Enterprise Repair Facilities Activities [PDF]
MATEC Web of Conferences, 2021 This article is devoted to the problems of the organizational structure optimization by the method of Value Analysis (VA). The analysis of the control system is of particular relevance in modern conditions.
Mineeva Tatyana A. +2 more
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Approximate Analytical Solutions to Nonlinear Oscillations of Horizontally Supported Jeffcott Rotor
Energies, 2022 The present paper focuses on nonlinear oscillations of a horizontally supported Jeffcott rotor. An approximate solution to the system of governing equations having quadratic and cubic nonlinearities is obtained in two cases of practical interest ...
Vasile Marinca, Nicolae Herisanu
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