Static and dynamic characteristics of journal bearing in the linear generator engine

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Abstract

This paper presents the static and dynamic characteristics of hydrodynamic journal bearing in the linear generator engine to solve tribological problems considering constant viscosity of the lubrication using the finite element method. The sliding surfaces between connecting rod and bush may be among the most complex tribological phenomenon in the linear generator engine and could become even more severe with increasing engine power. The friction between the connecting rod and bush significantly contributes to the power losses of the engine. On the basis of the finite element analysis theory, the Reynolds equation for static and dynamic loads is derived. The results represent the bearing characteristics, namely the variation of pressure along the circumference, the effect of load-carrying capacity, frictional losses, and stiffness and damping coefficient with the eccentricity ratio. This paper also presents the variation of eccentricity ratio with the Sommerfeld number. Results from the numerical analysis indicate that the effect of load-carrying capacity, frictional losses strongly depends on the eccentricity ratio. It also shows that the dynamic characteristics, namely stiffness and damping coefficients significantly depend upon the eccentricity ratio. In addition, this paper investigates the performance of characteristics of the journal bearing and its stability.

Original languageEnglish
Pages (from-to)9-15
Number of pages7
JournalHKIE Transactions Hong Kong Institution of Engineers
Volume13
Issue number2
Publication statusPublished - 2006

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Journal bearings
Engines
Connecting rods
Load limits
Bearings (structural)
Damping
Stiffness
Finite element method
Reynolds equation
Dynamic loads
Lubrication
Numerical analysis
Hydrodynamics
Viscosity
Friction

Keywords

  • Damping Coefficient
  • Eccentricity Ratio
  • Finite Element Method
  • Journal Bearing
  • Linear Generator Engine
  • Load Carrying Capacity
  • Lubrication
  • Stiffness Coefficient

ASJC Scopus subject areas

  • Engineering(all)

Cite this

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title = "Static and dynamic characteristics of journal bearing in the linear generator engine",
abstract = "This paper presents the static and dynamic characteristics of hydrodynamic journal bearing in the linear generator engine to solve tribological problems considering constant viscosity of the lubrication using the finite element method. The sliding surfaces between connecting rod and bush may be among the most complex tribological phenomenon in the linear generator engine and could become even more severe with increasing engine power. The friction between the connecting rod and bush significantly contributes to the power losses of the engine. On the basis of the finite element analysis theory, the Reynolds equation for static and dynamic loads is derived. The results represent the bearing characteristics, namely the variation of pressure along the circumference, the effect of load-carrying capacity, frictional losses, and stiffness and damping coefficient with the eccentricity ratio. This paper also presents the variation of eccentricity ratio with the Sommerfeld number. Results from the numerical analysis indicate that the effect of load-carrying capacity, frictional losses strongly depends on the eccentricity ratio. It also shows that the dynamic characteristics, namely stiffness and damping coefficients significantly depend upon the eccentricity ratio. In addition, this paper investigates the performance of characteristics of the journal bearing and its stability.",
keywords = "Damping Coefficient, Eccentricity Ratio, Finite Element Method, Journal Bearing, Linear Generator Engine, Load Carrying Capacity, Lubrication, Stiffness Coefficient",
author = "Rahman, {M. M.} and {Mohd Ihsan}, {Ahmad Kamal Ariffin} and Nordin Jamaludin and {Che Haron}, {Che Hassan}",
year = "2006",
language = "English",
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pages = "9--15",
journal = "Transactions Hong Kong Institution of Engineers",
issn = "1023-697X",
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AU - Rahman, M. M.

AU - Mohd Ihsan, Ahmad Kamal Ariffin

AU - Jamaludin, Nordin

AU - Che Haron, Che Hassan

PY - 2006

Y1 - 2006

N2 - This paper presents the static and dynamic characteristics of hydrodynamic journal bearing in the linear generator engine to solve tribological problems considering constant viscosity of the lubrication using the finite element method. The sliding surfaces between connecting rod and bush may be among the most complex tribological phenomenon in the linear generator engine and could become even more severe with increasing engine power. The friction between the connecting rod and bush significantly contributes to the power losses of the engine. On the basis of the finite element analysis theory, the Reynolds equation for static and dynamic loads is derived. The results represent the bearing characteristics, namely the variation of pressure along the circumference, the effect of load-carrying capacity, frictional losses, and stiffness and damping coefficient with the eccentricity ratio. This paper also presents the variation of eccentricity ratio with the Sommerfeld number. Results from the numerical analysis indicate that the effect of load-carrying capacity, frictional losses strongly depends on the eccentricity ratio. It also shows that the dynamic characteristics, namely stiffness and damping coefficients significantly depend upon the eccentricity ratio. In addition, this paper investigates the performance of characteristics of the journal bearing and its stability.

AB - This paper presents the static and dynamic characteristics of hydrodynamic journal bearing in the linear generator engine to solve tribological problems considering constant viscosity of the lubrication using the finite element method. The sliding surfaces between connecting rod and bush may be among the most complex tribological phenomenon in the linear generator engine and could become even more severe with increasing engine power. The friction between the connecting rod and bush significantly contributes to the power losses of the engine. On the basis of the finite element analysis theory, the Reynolds equation for static and dynamic loads is derived. The results represent the bearing characteristics, namely the variation of pressure along the circumference, the effect of load-carrying capacity, frictional losses, and stiffness and damping coefficient with the eccentricity ratio. This paper also presents the variation of eccentricity ratio with the Sommerfeld number. Results from the numerical analysis indicate that the effect of load-carrying capacity, frictional losses strongly depends on the eccentricity ratio. It also shows that the dynamic characteristics, namely stiffness and damping coefficients significantly depend upon the eccentricity ratio. In addition, this paper investigates the performance of characteristics of the journal bearing and its stability.

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KW - Eccentricity Ratio

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KW - Journal Bearing

KW - Linear Generator Engine

KW - Load Carrying Capacity

KW - Lubrication

KW - Stiffness Coefficient

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