Improvement of chatter stability in boring operations with semi active magneto-rheological fluid damper

Prabhu, L.; Kumar, Sudhanshu; Dinakaran, D.; Jawahar, R. Raj

doi:10.1016/j.matpr.2020.04.651

Cited by 9 publications

(7 citation statements)

References 10 publications

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“…The total shear force can be separated into viscous Fr and the magnetic field dependent force Fmr in the shear mode. The force of shear mode can be approximately expressed as (4) where S is a relative speed (m/s), and A = Lw.…”

Section: B Shear Modementioning

confidence: 99%

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Theoretical design and experimental study of magnetic circuit for magnetorheological (MR) damper of shear-valve mode

Liu¹,

Li²,

Sun³

et al. 2022

AEM

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According to the analysis of shear flow and pressure difference flow of MR fluids, the damping force of MR shear-valve damping force was analysed and calculated, and a magnetic circuit of Magnetorheological (MR) damper was designed. Based on the designed magnetic circuit, the degree of magnetic saturation and the dynamic characteristics of MR fluid damper, such as impedance, current, velocity and frequency were investigated. Magnetic induction testing of damping clearance was conducted, the test results show that when the coil current is 1.4A, the magnetic induction intensity reaches 0.55T.The bench test results show that when the piston speed is constant and the current is less than 1.36A, the variation range of damping force increases significantly. However, when the current is greater than 1.36A, the damping force tends to be stable and the coil reaches magnetic saturation, and energy indication characteristic of MR damper also show the same trend, which are consistent with the theoretical results. The results of this study can provide useful guidance for the magnetic circuit design of shear-valve MR fluid damper.

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Section: B Shear Modementioning

confidence: 99%

“…HEN the magnetic field is applied, iron particles in the MR fluid behave as dipoles and tend to align with the constant flux [1][2][3]. Based on this characteristic, magnetorheological fluids (MRF) are widely used in valve, clutch, brake, and damper systems [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Theoretical design and experimental study of magnetic circuit for magnetorheological (MR) damper of shear-valve mode

Liu¹,

Li²,

Sun³

et al. 2022

AEM

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show abstract

“…By using the Taguchi method and observations from the results revealed that two strata T 1 T 2 r02 deposits placed in series is preferred to the option of A103r02 as well as r02. Prabhu et al (2020) suppressed the boring bar vibration when engaging on the improvement of size for a pre-drilled hole. This goal was achieved by using a semi-active, radiallypositioned fluid damper with magneto rheological properties.…”

Section: Literature Review 21 Generalmentioning

confidence: 99%

Performance Evaluation of Surface Roughness in the Boring Operation of IS 2062 E250 Plate on CNC Machine Using Combined Entropy-Decision Tree-VIKOR Approach

Abiola

Oke

2021

IJIEM

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In boring E250 B0 steel material, the selection of process parameters is one of the most challenging tasks to achieve. The boring literature lacks understanding and fails to reveal how to select the important boring parameters for utmost resource distribution to the most important parameters. This article proposes a novel method to analyse the importance of parameters in boring to produce utmost surface roughness using the entropy-decision tree-VIKOR approach as a multi-criteria decision-making solution to the choice of process materials for superior surface roughness. The choice parameters include speed, depth of cut, feed and nose radius. The entropy approach was instituted to attain the weight of the diverse parameters. The decision tree approach is deployed through the classification of the parameters as beneficial and non-beneficial and the expected values at each mode evaluated. The desirable weightage is then established and serves as the input to the VIKOR approach. This converts the desirable weightage into unit measures through the best/worst value and weightage evaluation. The individual regrets are then analyzed and the final ranking obtained. Results revealed that the depth of cut is the most important parameter, then nose radius (0.98), feed (0.307) and speed (0), respectively. Therefore, a plan to assign more measures to the depth of cut may be developed and the least resources may be assigned to speed. This detail may be helpful to prepare the annual budgets for the boring operation on the factory floor.

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“…Besides, the diverse pressure from stakeholders in the boring operations (i.e. process engineer, manufacturing manager, maintenance manager, the general manager and operators) have also emerged, leading to advance complications in the boring operation decision process (Sathianarayanan et al, 2008;Patel and Deshpande, 2014;Ratnam et al, 2018;Melo et al, 2019;Sastry et al, 2019;Prabhu et al, 2020;Schmidt et al, 2020a,b;Saleh et al, 2021). From the roughness problem description, it is acknowledged that consideration of all aspects of the problem, including the boring operations process parameters, social subsystem, economic subsystem and environmental subsystem are important in the problem formulation (Patel and Deshpande, 2014).…”

Section: Introductionmentioning

confidence: 99%

Fuzzy Analytic Hierarchy Process and Markov Chain-WSM/WPM/WASPAS Approaches to solving the Surface Roughness Problem in the Boring of Carbon Steel IS 2062 GR E250 Plates on CNC Machines

Abiola

Oke

2022

IJIEM

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This paper establishes how the process engineer in a machine shop could capture the uncertainty and the transition of process parameters to improve the surfaced finish of bored work material (carbon steel IS 2062 GR E250 plates) and select the best parameters to achieve the aim. The fuzzy analytic hierarchy process method incorporating geometric mean and a novel Markov chain oriented weightage scheme were used as inputs into three multicriteria methods of weighted sum model (WSM), weighted product model (WPM) and weighted product model and weighted aggregated sum-product, assessment (WASPAS) model. Published literature data were used to validate the methods and their integrations. The novel Markov chain model borrows ideas from the orthogonal array, random number generation and the transition states of parameters. Finally, the optimal parametric setting idea is used to interprete the final results based on an initial response table determination, which are the averages of the signal-to-noise ratios summarized. The most important results are obtained from the fuzzy AHP-Markov WASPAS method. These are the feed parameter (preference score of 1.624) as the best parameter and the depth of cut with the preference score of 1.188 as the worst parameter. The findings indicate that process engineers should attach the most important interest to the feed rate as it is the most effective controlling parameter of surface finish during the boring operation of carbon steel IS 2062 GR E250 plates. Machining shops can employ the framework to evaluate and predict system performance before financial resource commitment to operations.

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Improvement of chatter stability in boring operations with semi active magneto-rheological fluid damper

Cited by 9 publications

References 10 publications

Theoretical design and experimental study of magnetic circuit for magnetorheological (MR) damper of shear-valve mode

Theoretical design and experimental study of magnetic circuit for magnetorheological (MR) damper of shear-valve mode

Performance Evaluation of Surface Roughness in the Boring Operation of IS 2062 E250 Plate on CNC Machine Using Combined Entropy-Decision Tree-VIKOR Approach

Fuzzy Analytic Hierarchy Process and Markov Chain-WSM/WPM/WASPAS Approaches to solving the Surface Roughness Problem in the Boring of Carbon Steel IS 2062 GR E250 Plates on CNC Machines

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