Experimental method for evaluating the balance of high-speed small-sized internal combustion engines

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The article presents an adaptation of the Gaevsky-Zhidkov method for estimating the balance of high-speed small-sized internal combustion engines using the idle characteristic, as well as propeller and external speed characteristics. The main task was to develop a test bench that provides high accuracy, repeatability of measurements and the ability to test internal combustion engines with working volume of up to 3.5 cm3 at shaft speeds of up to 37,000 rpm. The test bench makes it possible to determine the characteristics of the “engine-propeller”, the no-load characteristic, and also to carry out quick reconfiguration of the test facility when changing the internal combustion engine structure. As a result of the experimental study, the propeller characteristics of seven propellers, the no-load characteristics for the base electric motor and an electric motor with imbalance were determined. Using these results, the external speed characteristics of an internal combustion micro-engine with working volume of 2.5 cm3 were compared for two levels of balancing.

About the authors

P. D. Rekadze

Samara National Research University

Author for correspondence.
Email: rekadze.pd@ssau.ru
ORCID iD: 0000-0001-8405-1128

Candidate of Science (Engineering), design engineer

Russian Federation

S. Yu. Sychugov

Samara National Research University

Email: sychugov.sy@ssau.ru

Specialist of the Institute of Engine and Power Plant Engineering

Russian Federation

V. S. Melentiev

Samara National Research University

Email: kipdla223@ssau.ru

Candidate of Science (Engineering), Associate Professor of the Department of Aircraft Engine Construction and Design

Russian Federation

L. V. Rodionov

Samara National Research University

Email: rodionov.lv@ssau.ru
ORCID iD: 0000-0003-3613-1697

Candidate of Science (Engineering), Associate Professor of the Department of Power Plant Automatic Systems

Russian Federation


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