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Vibration Analysis of Chatter in Cold Rolling Mill

Vibration Analysis of Chatter in Cold Rolling Mill Theoretical Study on Self-Excited Vibration by a Two-DOF Tandem Model Kazushige ISHINO 1) Kazuhisa KABEYA 1) Takao YOSHIKAWA 2) 1) Get price

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Analysis and Diagnosis of Self

An approach of field multi-point vibration test for hot rolling mill housing is presented The self-excitation-vibration mechanism is studied and the vibration source is detected both using the techno logy of power spectrum analysis and wavelet package analysis of vibration signal The analysis showes that the structure of feedback path displacement sensor is the sensitive factor leading to Get price

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Vibration Analysis Reporting

Example 1 A furnace combustion fan which supplies billets to a rolling mill is highly critical and a Stage 2 defect will require that planning begin to replace the bearing The next opportunity for replacement could be in 6 to 12 months by which time the fault may have progressed to a higher stage Modern vibration analysis provides a Get price

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Chatter detection using principal component analysis in

Benhafsi Y The use of vibration analysis tools to solve chatter problems on rolling mills and roll grinding machines Proc of Steel Rolling 2006 the 9th International and 4th European Conference Get price

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(PDF) Wavelet Analysis of Vibration Signature of a Bevel

In manufacturing industry Gear boxes are one of the important components in power transmission Consequently any damage in the gearbox can lead to unprecedented downtime In machines the gear trains vibrate due to many reasons such as the non regularGet price

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Vibration analysis of Sendzimir cold rolling mill and

The dynamic behaviour of rolls strongly depends on the rolling pressure in the roll bite Strip vibration applies a dynamic component on the rolling force acting on the work roll and may excite the resonance of the mill stand This problem motivates predicting the cluster mill Get price

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Detecting critical vibrations in rolling mills

Jun 13 2019In a cold rolling mill the process data recording system ibaPDA has been used for process data analysis but the vibration measurement data was evaluated separately With ibaInSpectra as add-on to the ibaPDA system the acquired vibration Get price

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Machine

Spot-checking Condition vibration signal using Narrowband For a quick spot-check of the condi- and Cepstrum Analysis It is impor-tion of the mill's many hundredtan tha ats ver oyf thi h resolution (zoom) rollers the Broadbandi Vibratio uses fod r this analysisn Paper ma-1 • 1 1 -----^ - --^j - - - */ vibration Get price

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Vibration Instability in Rolling Mills: Modeling and

Mar 26 2002An analysis of rolling mill chatter was performed for the purpose of identifying characteristics of the vibrations and to determine any dependency on the rolling schedule In particular a stability criterion for the critical rolling speed is used to predict the maximum rolling speed without chatter instability on schedules from a 5 stand Get price

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CONTROL PROCESS FOR A COLD ROLLING MILL BY

most important parts of cold rolling mills This phenomenon causes severe damage for the mill machine and strip quality (Fig 1) Fig 1 Strip faults due to rolling mill vibration The integrated control process is made to analyse the vibrations which are produced on the work roll chocks and backup roll chocks Get price

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Vibration Analysis: What is it? [4 Measurement Techniques]

Vibration Analysis of Rolling Element Bearing Faults Localized faults in a rolling element bearing may occur in the outer race the inner race the cage or a rolling element Each of these faults is Get price

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Vibration Analysis Reporting

Example 1 A furnace combustion fan which supplies billets to a rolling mill is highly critical and a Stage 2 defect will require that planning begin to replace the bearing The next opportunity for replacement could be in 6 to 12 months by which time the fault may have progressed to a higher stage Modern vibration analysis Get price

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CONTROL PROCESS FOR A COLD ROLLING MILL BY

most important parts of cold rolling mills This phenomenon causes severe damage for the mill machine and strip quality (Fig 1) Fig 1 Strip faults due to rolling mill vibration The integrated control Get price

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Vibration Based Condition Monitoring ofRolling Mill

This article deals with the discussions about the load variation during rolling process in a rolling mill and its effect on the vibration amplitudes The load variation also affects the life of rolling mill components ‚Using vibration measurement and Analysis for Predictive Maintenance Get price

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Steel Production – Rolling Mill Chatter

Rolling mill chatter is a vibration problem limiting the throughput of nearly all metal rolling operations In addition associated sensitivity of the system to Problem: Rolling mill chatter a form of self excited vibrationGet price

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Vibration Based Condition Monitoring ofRolling Mill

This article deals with the discussions about the load variation during rolling process in a rolling mill and its effect on the vibration amplitudes The load variation also affects the life of rolling mill components ‚Using vibration measurement and Analysis Get price

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Vibration Instability in Rolling Mills: Modeling and

Mar 26 2002An analysis of rolling mill chatter was performed for the purpose of identifying characteristics of the vibrations and to determine any dependency on the rolling schedule In particular a stability criterion for the critical rolling speed is used to predict the maximum rolling Get price

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Spatial vibration of rolling mills

The analysis of rolling mill vibrations is usually limited to simple planar or low DOF vibrations In reality however rolling mill vibrations take place in six DOF leading to spatial behaviors Get price

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Analysis and Diagnosis of Self

An approach of field multi-point vibration test for hot rolling mill housing is presented The self-excitation-vibration mechanism is studied and the vibration source is detected both using the techno logy of power spectrum analysis and wavelet package analysis of vibration signal The analysis Get price

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Steel Production – Rolling Mill Chatter

Rolling mill chatter is a vibration problem limiting the throughput of nearly all metal rolling operations In addition associated sensitivity of the system to Problem: Rolling mill chatter a form of self excited vibrationGet price

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Vibration Analysis: What is it? [4 Measurement Techniques]

Vibration Analysis of Rolling Element Bearing Faults Localized faults in a rolling element bearing may occur in the outer race the inner race the cage or a rolling element Each of these faults is characterized by its own frequency which is usually listed by the manufacturer or calculated from the bearing specifications Get price

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Fabrication and angle compensation analysis of skew

focused on analyzing the rolling load or rolling torque generated by pair cross mills [7 8] and on the strip profile control capability of the roll crossing mill[9] and so forth Polymers have increasingly been used to replace metallic parts in a wide range ofGet price

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Prediction and analysis of cold rolling mill vibration

A mill vibration monitoring system was developed to monitor the oscillating movements of the rolls in the tandem cold rolling mill A sketch of the rolling mill vibration data monitoring system and the specific locations of the sensors (locations A B C and D) were shown in Fig 3 Location A was the operation side of the bottom work roll (WR) bearing location B was the operation side of the Get price

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Vibration Analysis of Rotating Machinery

Vibration Analysis of Rolling Element Bearing Faults Localized faults in a rolling element bearing may occur in the outer race the inner race the cage or a rolling element Each of these faults is characterized by its own frequency which is usually listed by the manufacturer or calculated from the bearing specifications Get price

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Research on the Vibration of Rolling Mill

In this paper a horizontal vibration problem in strip rolling was studied dynamic model was established the mechanism of self-excited vibration was analyzed The main reason of surface quality of strip is self-excited vibration A vertical natural frequency and vibration mode of the rolling mill Get price

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Chatter detection using principal component analysis in

Benhafsi Y The use of vibration analysis tools to solve chatter problems on rolling mills and roll grinding machines Proc of Steel Rolling 2006 the 9th International and Get price

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Dynamic analysis and control of strip mill vibration under

According to the "Hill rolling force formula" taking particular account of the influence from horizontal vibration of rolled piece in roll gap a dynamic rolling force model is analyzed Considering the interaction between vibration of strip and roll the dynamic vibration model of rolling mill is established On this basis the time delayed feedback is introduced to control the vibration Get price

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Condition Monitoring for Rolling Mills

Rolling Mills Many drives and more rollers in a harsh environment partially under unfavorable temperature conditions are characteristic of rolling mills For engines transmissions and pedestal bearings vibration diagnosis is advisable Dynamic effects are determined at best by torque analysis However offline measurements are suitable Get price

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Vibration Analysis: What is it? [4 Measurement Techniques]

Vibration Analysis of Rolling Element Bearing Faults Localized faults in a rolling element bearing may occur in the outer race the inner race the cage or a rolling element Each of these faults is Get price

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Research on the Vertical Vibration Characteristics of

The rolling mill with hydraulic system is widely used in the production of strip steel For the problem of vertical vibration of the rolling mill the effects of different equivalent damping coefficient leakage coefficient and proportional coefficient of the controller on the hydraulic screw down system of the rolling mill are studied respectively Get price

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