Improving efficiency by changing the switching moment in the acceleration — braking cycle

Authors: Lobacheva E.F.
Published in issue: #4(45)/2020
DOI: 10.18698/2541-8009-2020-4-602
Category: Mechanical Engineering and Machine Science | Chapter: Machines, Units and Processes
Keywords: lifting-and-transport machines, rescue device, transient operating modes, acceleration, braking, energy consumption, efficiency, economic efficiency
Published: 08.05.2020

An assessment of the economic qualities of lifting-and-transport machines is presented on the example of a swinging cylinder mechanism with hydraulic drive. The idealized acceleration — braking cycle is considered, which allows to evaluate the parameters of the machine under the most unfavorable operating conditions. It is shown that an assessment of economic efficiency can be obtained by solving a number of sequential tasks, an example of their calculation is given. It is concluded that the method of reducing energy consumption by changing the moment of switching from acceleration to braking in a lifting-and-transport machine is efficient and does not increase the structure cost. The estimation of the efficiency of the lifting-and-transport machine is given, recommendations are given on increasing the cyclic efficiency of the lifting mechanism. Thus, the methodology for controlling the moment of switching from acceleration to braking can be used in the design and calculation of the mechanisms of lifting-and-transport machines.

References

[1] Levitskiy N.I. Teoriya mekhanizmov i mashin [Theory of mechanisms and machines]. Moscow, Nauka Publ., 1979 (in Russ.).

[2] Leonov I.V., Leonov D.I. Teoriya mekhanizmov i mashin [Theory of mechanisms and machines]. Moscow, Vysshee obrazovanie Publ., 2009 (in Russ.).

[3] Barbashov N.N., Leonov I.V. Energy model of transmission mechanism with flywheel energy storage. Vestn. Mosk. Gos. Tekh. Univ. im. N.E. Baumana, Mashinostr. [Herald of the Bauman Moscow State Tech. Univ., Mechan. Eng.], 2010, no. 4, pp. 47–54 (in Russ.).

[4] Gulia N.V. Inertsiya [Inertion]. Moscow, Nauka Publ., 1982 (in Russ.).

[5] Aleksandrov A.A., Ivashchenko N.A., eds. Mashinostroenie. Entsiklopediya. T. IV-14. Dvigateli vnutrennego sgoraniya [Mechanical engineering encyclopaedia. Vol. IV-14. Internal sombustion engines]. Moscow, Mashinostroenie Publ., 2013 (in Russ.).

[6] Blaquieri A. Nonlinear system analysis. Academic Press, 1966.

[7] Stachowiak G., Batchelor A.W. Engeneering tribology. Butterworth-Heinemann, 2013.

[8] Ito Y., Matsumura T. Theory and practice in machining systems. Springer, 2017.

[9] Deane J.P., Gallachoir B.P., Mckeogh E.J. Techno-economic review of existing and new pumped hydro energy storage plant. Renew. Sust. Energ. Rev., 2010, vol. 14, no. 4, pp. 1293–1302. DOI: https://doi.org/10.1016/j.rser.2009.11.015

[10] Leonov I.V., ed. Primenenie sistemy Mathcad v kursovom proektirovanii po teorii mekhanizmov i mashin [Application of Mathcad system in course engineering on theory of mechanisms and machines]. Moscow, Bauman MSTU Publ., 2012 (in Russ.).

[11] Belokonev I.M. Mekhanika mashin. Raschety s primeneniem ETsVM [Machine mechanics. Calculations using electronic digital computer]. Kiev, Vishcha shkola Publ., 1978 (in Russ.).

[12] Yudovskiy I.M. Recuperative flywheel drive for non-programmable automatic manipulators. Vestnik mashinostroeniya, 1985, no. 4, pp. 9–11 (in Russ.).

[13] Korsunskiy V.A. Raising efficiency of mobile robots by using additional power supply source – flywheel energy accumulator. Nauka i obrazovanie: nauchnoe izdanie [Science and Education: Scientific Publication], 2013, no. 5. URL: https://elibrary.ru/download/elibrary_20165678_18597848.pdf (in Russ.).

[14] Gemintern V.I., Kagan B.M. Metody optimal’nogo proektirovaniya [Optimal design methods]. Moscow, Energiya Publ., 1980 (in Russ.).

[15] Pupkov K.A., Egupov N.D., eds. Metody klassicheskoy i sovremennoy teorii avtomaticheskogo upravleniya. T. 4: Teoriya optimizatsii sistem avtomaticheskogo upravleniya [Methods of classical and modern theory of automatic control. Vol. 4. Optimization theory of automatic control systems]. Moscow, Bauman MSTU Publ., 2004 (in Russ.).