Numerical investigation on dynamic characteristics of drilling shaft in deep hole drilling influenced by minimal quantity lubrication

The dynamic characteristics of drilling shaft in deep hole drilling influenced by minimal quantity lubrication (MQL) is investigated. According to the features of the compressible fluid Reynolds equation in oil/air feature, a time-dependent mathematical model is established to describe the pressure...

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Bibliographic Details
Published inNonlinear dynamics Vol. 74; no. 4; pp. 943 - 955
Main Authors Kong, Lingfei, Li, Yan, Lv, Yanjun, Wang, Qinfeng
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.12.2013
Springer Nature B.V
Subjects
Automotive Engineering
Classical Mechanics
Compressible fluids
Control
Cutting fluids
Cutting parameters
Design parameters
Differential equations
Drilling
Dynamic characteristics
Dynamical Systems
Engineering
Hydrodynamic pressure
Lubrication
Mechanical Engineering
Nonlinearity
Original Paper
Pressure dependence
Pressure distribution
Reynolds equation
Stability
Stability analysis
Stress concentration
Time dependence
Vibration
Instability rotational speed
Deep hole drilling
Hydrodynamic pressure
Dynamic responses
Minimal quantity lubrication
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Summary:The dynamic characteristics of drilling shaft in deep hole drilling influenced by minimal quantity lubrication (MQL) is investigated. According to the features of the compressible fluid Reynolds equation in oil/air feature, a time-dependent mathematical model is established to describe the pressure distribution of cutting fluid with nonlinearity in MQL deep hole drilling. By introducing the differential transformation approach, the time-dependent pressure equation arising from cutting fluid is solved by the use of direct integral method. The influences of the rotational speed, the transverse displacement ratio, and radial clearance on the hydrodynamic pressure distribution of cutting fluid are obtained. The advantage of this method is to overcome much of the computational cost and has its rapid convergence rate. Furthermore, the nonlinear responses of drilling shaft influenced by MQL are analyzed, and the instability rotational speeds of drilling tool are discussed while the design parameters of drilling shaft system changing.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0924-090X
1573-269X
DOI:10.1007/s11071-013-1014-5