Modal Analysis of the Milling Machine Structure through FEM and Experimental Test

Pedrammehr, Siamak; Farrokhi, Hamid; Rajab, Aslan Khani Sheykh; Pakzad, Sajjad; Mahboubkhah, Mehran; Ettefagh, Mir Mohammad; Sadeghi, Mostafa

doi:10.4028/www.scientific.net/amr.383-390.6717

Cited by 18 publications

(10 citation statements)

References 8 publications

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“…The FEM software ABAQUS was used to extract the natural frequency and shape of vibration modes. Pedrammehr et al [3] performed the modal testing of the milling machine components through FEM and experiment. For this purpose, the CAD model of milling machine was developed on CATIA and then natural frequencies and mode shape of the milling machine tool structure were obtained through finite element modelling software ANSYS workbench.…”

Section: Introductionmentioning

confidence: 99%

Experimental modal analysis using laser vibrometer and finite element modeling of milling machine arbor

Sharma

Parashar

2019

SN Appl. Sci.

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Experimental modal analysis has received a lot of consideration in recent days for dynamic analysis of complicated engineering structure and machine tools. It is a process which is used to determine the inherent dynamic properties of structure such as damping, mode shapes and natural frequencies. The experimental modal analysis benefits in design of all types of structures including automotive components, aircraft components, spacecraft, computers and tennis rackets and golf clubs etc. The present study deals with the experimental investigation of free vibration of milling machine arbor. Experimental modal analysis of milling machine arbor is carried out by using laser vibrometer for measurement and impact hammer for excitation. The experimental results are compared with the numerical predictions obtained using finite element modeling software ANSYS workbench 14.5. The scope of present work is to understand and investigate the modal parameters of milling machine arbor in the form of natural frequency and mode shape for robust design.

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Section: Introductionmentioning

confidence: 99%

Experimental modal analysis using laser vibrometer and finite element modeling of milling machine arbor

Sharma

Parashar

2019

SN Appl. Sci.

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“…In the past, efforts have been made by a quite number of researchers to study the problems of machining chatter vibrations [3]. Experimental and finite element (FE) model of machine tool were combined to investigate the vibrations [18,19]. Kersting et al [19] highlighted the effects of vibration on the workpiece, which focused on the feedback of workpiece displacement using FE.…”

Section: Introductionmentioning

confidence: 99%

Active Damping of Milling Vibration Using Operational Amplifier Circuit

Muhammad

Wan

Yang

et al. 2018

Chin. J. Mech. Eng.

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The problem of chatter vibration is associated with adverse consequences that often lead to tool impairment and poor surface finished in a workpiece, and thus, controlling or suppressing chatter vibrations is of great significance to improve machining quality. In this paper, a workpiece and an actuator dynamics are considered in modeling and controller design. A proportional-integral controller (PI) is presented to control and actively damp the chatter vibration of a workpiece in the milling process. The controller is chosen on the basis of its highly stable output and a smaller amount of steady-state error. The controller is realized using analog operational amplifier circuit. The work has contributed to planning a novel approach that addresses the problem of chatter vibration in spite of technical hitches in modeling and controller design. The method can also lead to considerable reduction in vibrations and can be beneficial in industries in term of cost reduction and energy saving. The application of this method is verified using active damping device actuator (ADD) in the milling of steel.

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“…Research has been conducted both on whole structures of machine tools and on the particular parts. A cylindrical grinding machine (Barzegar et al 2013), milling machine (Pedrammehr et al 2012) and moving table of 4-DOF parallel machine tool (Mahboubkhah et al 2017) were investigated. Mode shapes and natural frequencies were compared.…”

Section: Introductionmentioning

confidence: 99%

Cast Iron Machine Tool Body Analysis: The Theoretical and Experimental Approach

Kępczak

Pawłowski

2018

Iran J Sci Technol Trans Mech Eng

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The paper presents theoretical and experimental modal analysis of the machine tool lathe body made of cast iron. Modal analysis is commonly used in practice as a technique for determining the dynamic properties of objects. The aim of the work was to compare the theoretically obtained results with experimental research. The modal analyses both theoretical and experimental were conducted in frequency domain in range from 0 to 1600 Hz. Results from theoretical modal analysis were highly convergent with experimental studies. This verification of theoretical model with experimental results gave justified basis to conduct the research based on verified model. The model could be subsequently applied to perform simulations of the analyzed body behavior in the conditions which were not examined experimentally. On this basis, the conclusions about dynamic behavior of the analyzed object were formulated.

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Modal Analysis of the Milling Machine Structure through FEM and Experimental Test

Cited by 18 publications

References 8 publications

Experimental modal analysis using laser vibrometer and finite element modeling of milling machine arbor

Experimental modal analysis using laser vibrometer and finite element modeling of milling machine arbor

Active Damping of Milling Vibration Using Operational Amplifier Circuit

Cast Iron Machine Tool Body Analysis: The Theoretical and Experimental Approach

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