Modeling of operation processes of a motor grader engine during work under unsteady load

Authors

DOI:

https://doi.org/10.15587/1729-4061.2017.107128

Keywords:

motor grader operation, operation modes, unsteady load, dynamic characteristics, oscillatory process

Abstract

We proposed a model of operation processes of a motor grader engine under unsteady load during technological processes of road construction works. Theoretic dependences of operation processes of a diesel motor grader engine, described by third order differential equations, were determined. The developed mathematical model of operation processes of a motor grader engine under unsteady mode makes it possible to employ known theoretical provisions to improve the system of air regulation in the commercially available motor grader engines. The model is a description of patterns of influence of differential equations coefficients and the load character on a change in the rotation rate of crankshaft of engine, cyclic fuel supply and hourly fuel consumption.

Numerical modeling was carried out of load throw off and load gain of a motor grader engine using third-order differential equations in relative magnitudes. It was established that at a decrease in the values of coefficients of differential equation the transition process proceeds more intensively. In this case, time of delay in the response to disturbance and the duration of damping the oscillation process decrease. The proposed model would ultimately optimize engine performance under unsteady modes.

Author Biographies

Dmytro Klets, Kharkiv National University of Automobile and Highways Yaroslava Mudroho str., 25, Kharkiv, Ukraine, 61002

Doctor of Technical Sciences, Associate Professor, Head of Department

Department of Computer Technologies and Mechatronics 

Maxim Krasnokutsky, LLC "UKR-BUD" Sribnokilska str., 1, Kyiv, Ukraine, 02095

Production Director

Vasily Hatsko, Kharkiv National University of Automobile and Highways Yaroslava Mudroho str., 25, Kharkiv, Ukraine, 61002

PhD

Department of Mechanical Engineering Technologies and Motor Vehicle Repairs

Marina Barun, Kharkiv National University of Automobile and Highways Yaroslava Mudroho str., 25, Kharkiv, Ukraine, 61002

PhD

Department of Ecology

References

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Published

2017-08-22

How to Cite

Klets, D., Krasnokutsky, M., Hatsko, V., & Barun, M. (2017). Modeling of operation processes of a motor grader engine during work under unsteady load. Eastern-European Journal of Enterprise Technologies, 4(7 (88), 45–50. https://doi.org/10.15587/1729-4061.2017.107128

Issue

Section

Applied mechanics