Analysis of Self-Balance Characteristics of OPOC Engine

Huo, Ping; Wang, Jian Ping; Sun, Qiu Yan

doi:10.4028/www.scientific.net/amr.211-212.93

Cited by 7 publications

(2 citation statements)

References 2 publications

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“…Therefore, relatively small loads are transferred to the engine block, which mitigates vibrations of the entire engine. Engines with reciprocating pistons are considered selfbalancing, without the need for additional mechanisms [10,11,13]. This paper presents the results of bench testing for measuring the mechanical vibrations of an engine with opposed pistons.…”

Section: Introductionmentioning

confidence: 99%

Analyzing mechanical vibrations of an aircraft opposed piston engine

Biały¹,

Grabowski²,

Skórzyński³

et al. 2021

Combustion Engines

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The paper presents the results of the bench tests to measure mechanical vibrations of a new aircraft opposed piston engine with reciprocating pistons. The PLZ-100 engine is a three-cylinder, six-piston, two-shaft drive unit with a two-stroke diesel cycle. This type of engine is dedicated for powering light aircraft, e.g. autogyros. The tests were carried out on a test bench at the Lublin University of Technology. The engine was loaded with constant torque, for several fixed values of rotational speed of a crankshaft. The angle of the start of diesel injection was changed for each of the rotational speeds. The mechanical vibrations that accompanied the operation of this drive unit were recorded with three measurement transducers and a National Instruments conditioning system. Each of the transducers was mounted on a different axis of the engine. The signals were analyzed from their courses with the DIAdem software. The results were the courses of effective speed and vibration acceleration to conduct a vibration-acoustic evaluation of the PLZ-100, detect and prevent various types of defects or failures.

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Section: Introductionmentioning

confidence: 99%

Analyzing mechanical vibrations of an aircraft opposed piston engine

Biały¹,

Grabowski²,

Skórzyński³

et al. 2021

Combustion Engines

View full text Add to dashboard Cite

show abstract

“…After a long period of scientific research and production practice, there are many relatively mature theories in kinematics and dynamics analysis methods for internal combustion engines [5]- [7]. Graphic, analytical, and complex vector are the most common methods.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Balance Two-Dimensional Measuring of Crankshaft Assembly in Motorcycle Engine

et al. 2020

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A crankshaft assembly has different structure and dynamic characteristics than a normal revolved body, which leads to problems in dynamic balance measurement and imbalance compensation of it. The traditional method used to measure crankshaft assemblies is too inefficient to meet the modern manufacturing industry's requirements. Inspired by the challenges, methods for dynamic balance measurement and imbalance compensation of it are proposed in this paper. First, three typical dynamic balance models of a crankshaft assembly are built for different unbalanced mass distributions. Then, the unbalanced inertial force and unbalanced characteristic parameters are formulated and analyzed. Based on dynamic balance modeling and synthesis, an imbalance compensation method is proposed by drilling-out at a specific angle of the crankshaft. Finally, the dynamic balance measurement experiment is conducted, and the results validate that the proposed method is fast and accurate.

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