Vehicle oscillation taking into account the rheological properties of the suspension

Yusupov, Maksudbek; Rahkmankulova, Barna; Ziyaeva, Sholpan; Kushaev, Akobir

doi:10.1088/1757-899x/896/1/012141

Cited by 5 publications

(4 citation statements)

References 1 publication

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“…The system (3) is solved by methods based on the quadrature formula [7][8][9][10][11][12][13]. Integrating the system (3) twice by t, at the interval [0; t] we have: In the latter system, replacing the integrals with quadrature trapezoid formulas to determine the displacement of the load from the static equilibrium position / = / , / = / , / = / CD) / = / ?…”

Section: Results and Conclusionmentioning

confidence: 99%

Vibrations of high-rise buildings under seismic impact taking into account physical nonlinearity

Mirzaev

Yusupov

Rakhmankulova

et al. 2022

J. Phys.: Conf. Ser.

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Analytical description of vibration loads of the complex construction structure is considered as a system of masses connected by means of viscoelastic springs. To take into account the rheological properties of the spring material, the Boltzmann-Volterra principle is used. A mathematical model of the problem under consideration has been developed, which boils down to the solution of a system of nonlinear integro-differential equations. A solution method based on the use of quadrature formulas has been developed and a computer program has been compiled on its basis. The results are shown as graphs. Influence of nonlinear and rheological properties of spring on amplitude and phase of mass oscillations is investigated.

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Section: Results and Conclusionmentioning

confidence: 99%

Vibrations of high-rise buildings under seismic impact taking into account physical nonlinearity

Mirzaev

Yusupov

Rakhmankulova

et al. 2022

J. Phys.: Conf. Ser.

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“…In such cases, it is advisable to use indefinite linear programming. The work is devoted to studying various models of an indefinite linear programming problem [15][16][17][18][19][20] and consists of indefinite linear programming, indefinite inequalities, and explicit linear programming problems. Traffic flows are modeled.…”

Section: Discussionmentioning

confidence: 99%

Development of a traditional transport system based on the bee colony algorithm

et al. 2023

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At present, a significant part of optimization problems, particularly questions of combinatorial optimization, are considered NP-complete problems. When solving optimization problems, the neural network approach increases the probability of obtaining an optimal solution. The traveling salesman problem is considered a test optimization problem. This problem was solved using the Hopfield neural network. In solving optimization problems, numerous computation processes and computation time are required. To improve performance and increase the program's speed, there are cases of inappropriate purchase of additional programs and tools, and involvement of additional services. In these cases, parallel computing technologies are used to give an effective result. Based on the developed algorithms, several computational experiments were carried out. The analysis of the obtained results showed that the algorithms of artificial neural networks proposed by us, in comparison with the algorithms created based on Hopfield neural networks, are characterized by low resource consumption and efficiency in terms of high speed. But, it should be noted that if the volume of tasks is very large, neural network algorithms may become less efficient due to longer computation. In such cases, it is usually advisable to use evolutionary algorithms. In particular, the study considers using the bee swarm algorithm for parallel computing technologies. Solving optimization problems using the bee swarm algorithm in parallel computing technologies can be significantly efficient and fast.

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“…The system of integro-differential equations (1) with initial conditions (2) is solved by a method based on the use of the quadrature formula [9][10][11][12][13][14]. Integrating twice by t system (1) in the interval [0; t] and assuming ‫ݐ‬ = ‫ݐ‬ = ݊ • ‫,ݐ∆‬ ݊ = 0,1,2,3, … (∆t -step in time) we have:…”

Section: Methods Of Solutionmentioning

confidence: 99%

Numerical modeling of nonlinear viscoelastic vibrations of vehicles

2023

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Nonlinear viscoelastic oscillations of a vehicle in a vertical direction excited by static imbalance are considered. When taking into account the rheological properties of the suspension material and spring, the Boltzmann-Volterra principle was used. Mathematical models of the problem under consideration are obtained, which are described by systems of nonlinear integro-differential equations. A solution method based on quadrature formulas has been developed, and a computer program has been compiled on its basis. The results obtained are reflected in graphs. The influence of the material's rheological properties and the nonlinear characteristics of the suspension and spring on the amplitude and frequency of vertical vibrations of vehicles was investigated.

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Vehicle oscillation taking into account the rheological properties of the suspension

Cited by 5 publications

References 1 publication

Vibrations of high-rise buildings under seismic impact taking into account physical nonlinearity

Vibrations of high-rise buildings under seismic impact taking into account physical nonlinearity

Development of a traditional transport system based on the bee colony algorithm

Numerical modeling of nonlinear viscoelastic vibrations of vehicles

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