Design and development of two degree of freedom model with PID controller for turning operation

Prabhu, Prakash; Prathipa, R.; Shanmugasundaram, B

doi:10.21595/jme.2016.15762

Cited by 4 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The process parameters used to ensure real situations are [18,23,24]: mass (m) = 2.5 kg, stiffness (k) = 2x10 N / m, damping (c) = 1340 N.s/m and cutting coefficient (Kf) = 2000 N/m. Equation 4is obtained if the transfer function between force and displacement for the cutting tool is defined as .…”

Section: Fig 2 System Modeling In Turningmentioning

confidence: 99%

WITHDRAWN: Identification of Chatter Vibrations and Active Vibration Control by Using Sliding Mode Controller on Dry Turning of Ti6al4v

Güvenç

Bilgiç

Mıstıkoğlu

2021

Preprint

View full text Add to dashboard Cite

In recent years, with the development of sensor technologies, communication platforms, cyber physical systems, storage technologies, internet applications and controller infrastructures, the way has been opened to produce competitive products with high quality and low cost. In turning, which is one of the important processes of machining, chatter vibrations are among the biggest problems affecting product quality, productivity and cost. There are many techniques proposed to reduce chatter vibrations for which the exact cause cannot be determined. In this study, an active vibration control based on Sliding Mode Control (SMC) has been implemented in order to reduce and eliminate chatter vibration, which is undesirable for the turning process. In this context, three-axis acceleration data were collected from the cutting tool during the turning of Ti6Al4V. Finite Impulse Response (FIR) filtering, Fast Fourier Transform (FFT) analysis and integral process were carried out in order to use the raw acceleration data collected over the system in control. The system was modeled mathematically and an active control block diagram was created. It was observed that chattering decreased significantly after the application of active vibration control. The surface quality formed by the amplitude of the graph obtained after active control has been compared and verified with the data obtained from the actual manufacturing result.

show abstract

Section: Fig 2 System Modeling In Turningmentioning

confidence: 99%

WITHDRAWN: Identification of Chatter Vibrations and Active Vibration Control by Using Sliding Mode Controller on Dry Turning of Ti6al4v

Güvenç

Bilgiç

Mıstıkoğlu

2021

Preprint

View full text Add to dashboard Cite

show abstract

Dynamics of mass variable rotor and its application in modeling tuning operation

et al. 2021

View full text Add to dashboard Cite

The vibration of a rotor with variable mass as a one-mass system with two degrees of freedom is investigated. An analytical procedure for solving of the system of two coupled second-order differential equations with slow time variable parameters is developed. The trajectory of the rotor center for various initial conditions is obtained. The method developed in the paper is applied for determining the vibration of the work piece during turning operation. The analytically obtained results show the influence of mass variation, cutting parameters and cutting force on the dynamic properties of the work piece. A decrease in mass of the work piece increases the amplitude of vibration. The amplitude increase is faster if the cutting velocity is higher. The obtained results are compared with experimentally obtained ones. The correlation between vibration and surface roughness is determined.

show abstract

Research on vibration and deflection for drilling tools of coal auger

Yang¹,

Li²,

Wang³

et al. 2017

J. vibroeng.

View full text Add to dashboard Cite

Coal augers is a new type of mining equipment used in thin coal seam, and directional drilling performance of its drilling tools becomes the key issue in the equipment service life and drilling efficiency. The drilling test bench of a three-bit coal auger is constructed to study vibration and deflection performance of its drilling tools in this paper. Based on some reasonable simplifications and hypotheses of drilling tools, simulation model of a three-bit coal auger is established to analyze its vibration and deflection performance with different drilling depths. Then a novel drill rod stabilizer is designed and the simulation model of a three-bit coal auger with this stabilizer is constructed compared with a normal coal auger to study vibration and deflection performance of drilling tools, which provides scientific basis for stabilizers' arrangement form. Research shows that: the simulation results accords with test results, which verifies correctness and rationality of simulation; vibration and deflection of drilling tools become greater with drilling depth increasing; drill rod stabilizers can effectively reduce drilling tools' vibration and deflection, and are arranged every 5 drill rods and air pipes which is optimal decision.

show abstract

Design and development of two degree of freedom model with PID controller for turning operation

Cited by 4 publications

References 5 publications

WITHDRAWN: Identification of Chatter Vibrations and Active Vibration Control by Using Sliding Mode Controller on Dry Turning of Ti6al4v

WITHDRAWN: Identification of Chatter Vibrations and Active Vibration Control by Using Sliding Mode Controller on Dry Turning of Ti6al4v

Dynamics of mass variable rotor and its application in modeling tuning operation

Research on vibration and deflection for drilling tools of coal auger

Contact Info

Product

Resources

About