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urgent needed aan expert mechanical engg Vibration Analysis

(a) Briefly describe the use of vibration measurement as a tool in condition monitoring of rotating machinery. Your answer should include:

• definitions of the quantities which can be usefully measured.

• the application to fault identification in rotating machinery.

• the typical transducer used for the task.

(b) A machine runs on rolling element bearings at a shaft speed of 3200 rpm. The bearings have the following characteristics: roller/race diameter ratio = 0.23, number of rolling elements 11, contact angle 0. The machine is classified as Class II for the purpose of assessment under ISO 2372.

• Assuming that the vibration can be described by a dominant frequency component of the form x(t) = A sin(2ft) calculate the vibration frequencies which would correspond to shaft and bearing faults occurring in this machine.

• Using the ISO 2372 table, estimate the range of acceleration amplitudes which should be measureable in order to record the bearing’s performance up to the ‘unacceptable’ threshold.

• If an accelerometer of sensitivity 100 mV/g is used to detect the vibrationestimate the maximum voltage amplitude which should be measureable.

(c) It is necessary to select an A/D converter to capture the vibration signals from the accelerometer. Using the results from part (b) above to estimate the required frequency range and frequency resolution of the measurement as well as the dynamic range of the data: specify

• A suitable resolution for the A/D converter,

• A suitable sampling frequency for the measurement,

• The number of samples that should be recorded for each spectrum

• Any other signal conditioning elements that may be necessary.

Evner: Kemisk Ingeniørarbejde, Elektrisk Ingeniørarbejde, Ingeniørarbejde, Mekanisk Ingeniørarbejde, Fysik

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Om arbejdsgiveren:
( 18 bedømmelser ) Delhi, India

Projekt ID: #18987671

5 freelancere byder i gennemsnit ₹2570 på dette job

bchandra1955

I have vibration related project experience Professional engineer with 40 years of experience in aerospace and mechanical engineering projects

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bhoseini

Hi, i have a PhD in mechanical engineering and my field of work is mechanical vibrations and vibration based fault diagnosis. I believe that I can help you in your project. Let's discuss the details if you wish.

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enghamza12

My name is Hamza Nassar 1. CAD/CAM, 3D modelling, Interior and Exterior Design and Rendering I have many experience product design, modelling and rendering. I'm 3d max, ArchiCAD, Sketchup, Solidworks a Flere

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jony0172

this is my first time job in freelancing website. for first time i will be more conscious about this job hope i will success. need your favor and hope i will success. Note that. I am qualified on excel and advance Flere

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dselva45

10+ Years experience in mechanical maintenance field. Knowledge in different maintenance techniques and management.

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