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Computationally Efficient Practical Method for Solving the Dynamics of Fluid Power Circuits in the Presence of Singularities

Malysheva, Julia; Stanislav, Ustinov; Handroos, Heikki (2020-11-18)

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malysheva_et_al_computationally_efficient_post-print.pdf (2.182Mb)
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Post-print / Final draft

Malysheva, Julia
Stanislav, Ustinov
Handroos, Heikki
18.11.2020

IEEE/ASME Transactions on Mechatronics

IEEE

School of Energy Systems

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© 2020 IEEE
https://doi.org/10.1109/TMECH.2020.3038929
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe20201216100931

Tiivistelmä

In this paper, a practical method is proposed for the efficient solution of fiuid power systems with singularities originating (in particular) from the presence in the system of small volumes. The method is based on the use of an enhanced version of the pseudo-dynamic solver (the advanced pseudo-dynamic solver), which seeks the steady-state solution of pressure building up in the small volume. This solver can be attributed to the class of explicit solvers. There are two main advantages of the proposed solver. The first is the higher accuracy and numerical stability of the solution compared with the classical pseudo-dynamic solver, owing to the enhanced solver structure and the use of an adaptive convergence criterion. The second is the faster calculation time compared with conventional integration methods such as the fourth-order Runge-Kutta method, owing to the obtained possibility of larger integration time step usage. Thus, the advanced pseudo-dynamic solver can become a preferred method in the simulation of complex fiuid power circuits. Simulation results of the C code implementation confirm that the advanced pseudo-dynamic solver is better than conventional solvers for the solution of the real-time systems that include fiuid power components with small volumes.

Lähdeviite

J. Malysheva, S. Ustinov and H. Handroos, "Computationally Efficient Practical Method for Solving the Dynamics of Fluid Power Circuits in the Presence of Singularities," in IEEE/ASME Transactions on Mechatronics, doi: 10.1109/TMECH.2020.3038929.

Alkuperäinen verkko-osoite

https://ieeexplore.ieee.org/document/9263304/
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