Analysis of the Vibration Characteristics of a Boring Bar with a Variable Stiffness Dynamic Vibration Absorber

Li, Lie; Sun, Beibei; Hua, Haitao

doi:10.1155/2019/5284194

Cited by 9 publications

(6 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Dynamic force interaction can be favorably modified to reduce mass of the dissipative element, with use of velocity amplification mechanism [48]. Macko et al investigated evaluated efficiency of grinding process by evaluating various parameters including sample alignment and blade geometry changes by following experimental approach [49,50]. Numerical simulation tools including computational fluid dynamics and Solid Works Flow Simulation have been used for productivity improvements [51].…”

Section: Introductionmentioning

confidence: 99%

A Flexible Mechanism Based Vibration Isolator for Machine Tool Application

Satpute¹,

Iwaniec

2022

MATEC Web Conf.

View full text Add to dashboard Cite

The paper presents novel design of vibration absorber with innovative features including use of flexible link based mechanism at the interface of tool holder and cutting tool. The mechanism ensures modification of the dynamic force interaction at the damping element and results in lower force transmissibility. It ensures amplification of the relative velocity at the damping element, which results in significant reduction of the damping element mass used for energy dissipation. The presented absorber has advantages of passive and economical operation in comparison to the active and semi-active solutions. Further, the proposed solution results in up to 53% reduction in the force transmissibility. A real size design has been presented for frequency range of 0-1100 Hz and maximum force amplitude of 700 N. Numerical simulations have been performed with consideration of flexible joint and structural element dynamics. Simulation results with FEA and PRBM approach have been compared with detailed analysis of the important design parameters.

show abstract

Section: Introductionmentioning

confidence: 99%

A Flexible Mechanism Based Vibration Isolator for Machine Tool Application

Satpute¹,

Iwaniec

2022

MATEC Web Conf.

View full text Add to dashboard Cite

show abstract

“…Rubio et al (2013) presented an optimisation methodology for parametric selection of vibration absorber attached to the boring bar. Liu et al (2017) and Li et al (2019) employed a variable stiffness dynamic vibration absorber in the boring bar cavity to analyse the vibration characteristics and observed reduction in the vibration. Bavastri et al (2015) designed an optimal viscoelastic dynamic absorber to suppress chatter in turning processes.…”

Section: Introductionmentioning

confidence: 99%

Optimal cutting state predictions in internal turning operation with nano-SiC/GFRE composite layered boring tools

Yuvaraju

Nanda

Srinivas

2021

IJMMM

View full text Add to dashboard Cite

This paper presents passive vibration control methodology in internal turning process with the use of hybrid nanocomposite coatings (nano-SiC/GFRE) on the surface of boring bar. Natural frequencies and damping ratio of different composition tool holders are obtained experimentally using impact hammer test. Three different configuration considered are: conventional (tool holder 1); nano-SiC/GFRE with 1% SiC (tool holder 2); and nano-SiC/GFRE with 2% SiC (tool holder 3). A better damping ability is noticed in third configuration of tool holder compared to others. Furthermore, using single mode data, analytical stability lobe diagrams are constructed for all three tool holders. Moreover, Box-Behnken design (BBD) is adopted and a set of fifteen experiments are performed with each tool holder. For third configuration of tool holder, effect of input variables on the surface roughness and tool vibration amplitudes is studied using neural network model. Finally, the neural network regression model is employed as a function estimation tool in simulated annealing for obtaining optimal cutting conditions.

show abstract

“…To improve the dynamic stiffness of the boring bar. In the first category, various absorbers are proposed and designed-such as e.g., a passive DVA attached to boring bar [28,29], a new type of damping boring bar with a DVA [30], a three-dimensional model of a damped boring bar [31], a composite DVA with a particle damper [32], a variable-stiffness dynamic vibration absorber (VSDVA) [33]. The second category is for proposed solutions-such as e.g., the proposing a vibration reduction methodology through the use of embedded piezoelectric patches in the tool-holder [34], a 3-degree freedom linear magnetic actuator [35,36], a noncontact magnetic actuator fit with fiber optic displacement sensors, mounted on a computer numerical control (CNC) lathe [37].…”

Section: Introductionmentioning

confidence: 99%

Modeling of Boring Mandrel Working Process with Vibration Damper

et al. 2020

View full text Add to dashboard Cite

The article considers the issue of modeling the oscillations of a boring mandrel with vibration damper connected to the mandrel with a viscoelastic coupling. A mathematical model of the boring mandrel oscillations, machine support and inertial body (damper) is developed in the form of a differential equations system. The model is made in the form of a four-mass system of connected bodies. The solution to the differential equations system was found using the finite difference method, as well as the operator method with the use of the Laplace transform. As the simulation result, it was found that the use of vibration damper can significantly reduce the amplitude of the boring mandrel natural vibrations when pulsed, and also significantly reduce the forced vibrations amplitude when exposed to periodic disturbing forces. The developed mathematical model and algorithms for the numerical solution to the differential equations allowed us to choose the optimal parameters of the boring mandrel damping element. The obtained data will be used to create a prototype boring mandrel and conduct field tests.

show abstract

Analysis of the Vibration Characteristics of a Boring Bar with a Variable Stiffness Dynamic Vibration Absorber

Cited by 9 publications

References 23 publications

A Flexible Mechanism Based Vibration Isolator for Machine Tool Application

A Flexible Mechanism Based Vibration Isolator for Machine Tool Application

Optimal cutting state predictions in internal turning operation with nano-SiC/GFRE composite layered boring tools

Modeling of Boring Mandrel Working Process with Vibration Damper

Contact Info

Product

Resources

About