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Hello All, I need to understand in which phenomenon the static charge is developed in the pipes due to fluid flow. and is there any way to predict or calculate it?? Thank you Dipak

Mike, Thank you for your replay. We need to find static voltage, however if we could predict electricity generated by fluid that is best for me. Length of hose is 35 foot. Inside diameter is .500 inch. Application is aerospace fuel. Regards, Dipak

Thank you for your replays. My requirement is "Nonmetallic plumbing installations shall be so designed that the static voltage generated by fluid flow will not exceed 350 volts at any point outside the pipes, tubes, or hoses.” I need to prove analytical calculations it will not exceed than 350...

Thank you for your replay. however i want the some physical formula to related flow rate, density, length and diameters of hose. my requriement is static voltage is not exceed than 250 volts, need to prove by calculation. I got below formula V=E/Q E= ENERGY E = wp/γ + wz + wv2/2g Q=CHARGE...

Dear friends, i need to calculate the static voltage or charge fluid flowing through hydraulic hoses. i know basic formula V=IR and V=E/Q E= ENERGY Q=CHARGE how to relate I and R to flow rate, density, length and diameters of hose. study based on flow rate, density, length and diameters of...

Thank for all replays. I have done FEA analysis to verify design.

thanks for your quick replay. my basic requirement is "vibration fixture should match 3000 HZ frequency." so how can we theoretically calculate natural frequency? i have done the FEA analysis with few iterations however is there any formula to get natural frequency easily? thank you Dipak

hi, I am designing vibration fixture for an actuator , I want to find Natural frequency of fixture by theoretical calculations? vibration fixture should match 3000 HZ frequency. Vibration fixture consist of below parts • Base plate • Steel female spline to connect output shaft • 6 screws to...