Flow Coefficient in Terms of Flow of Lubricant through Pad Calculator

✖The Flow of Lubricant can be defined as the amount of lubricant flowing per unit time between the surfaces.ⓘ Flow of Lubricant [Q]			+10% -10%
✖Total projected area of bearing pad is the total area of the bearing pad that is projected onto the bearing surface.ⓘ Total Projected Area of Bearing Pad [A_p]			+10% -10%
✖The Dynamic Viscosity of Lubricant is the resistance to movement of one layer of fluid over another.ⓘ Dynamic Viscosity of Lubricant [μ_l]			+10% -10%
✖Load Acting on Sliding Bearing is the force acting onto the sliding journal bearing.ⓘ Load Acting on Sliding Bearing [W]			+10% -10%
✖Oil film thickness is defined as the thickness of the oil film between the two parts in relative motion.ⓘ Oil film thickness [h]			+10% -10%

✖The Flow Coefficient is a relative measure of the efficiency at allowing fluid flow.ⓘ Flow Coefficient in Terms of Flow of Lubricant through Pad [q_f]

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Formula

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Flow Coefficient in Terms of Flow of Lubricant through Pad

Formula

`"q"_{"f"} = "Q"*"A"_{"p"}*"μ"_{"l"}/("W"*("h"^3))`

Example

`"11"="1600mm³/s"*"450mm²"*"220cP"/("1800N"*(("0.02mm")^3))`

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Flow Coefficient in Terms of Flow of Lubricant through Pad Solution

STEP 0: Pre-Calculation Summary

Formula Used

Flow Coefficient = Flow of Lubricant*Total Projected Area of Bearing Pad*Dynamic Viscosity of Lubricant/(Load Acting on Sliding Bearing*(Oil film thickness^3))
q_f = Q*A_p*μ_l/(W*(h^3))
This formula uses 6 Variables

Variables Used

Flow Coefficient - The Flow Coefficient is a relative measure of the efficiency at allowing fluid flow.
Flow of Lubricant - (Measured in Cubic Meter per Second) - The Flow of Lubricant can be defined as the amount of lubricant flowing per unit time between the surfaces.
Total Projected Area of Bearing Pad - (Measured in Square Meter) - Total projected area of bearing pad is the total area of the bearing pad that is projected onto the bearing surface.
Dynamic Viscosity of Lubricant - (Measured in Pascal Second) - The Dynamic Viscosity of Lubricant is the resistance to movement of one layer of fluid over another.
Load Acting on Sliding Bearing - (Measured in Newton) - Load Acting on Sliding Bearing is the force acting onto the sliding journal bearing.
Oil film thickness - (Measured in Meter) - Oil film thickness is defined as the thickness of the oil film between the two parts in relative motion.

STEP 1: Convert Input(s) to Base Unit

Flow of Lubricant: 1600 Cubic Millimeter per Second --> 1.6E-06 Cubic Meter per Second (Check conversion here)
Total Projected Area of Bearing Pad: 450 Square Millimeter --> 0.00045 Square Meter (Check conversion here)
Dynamic Viscosity of Lubricant: 220 Centipoise --> 0.22 Pascal Second (Check conversion here)
Load Acting on Sliding Bearing: 1800 Newton --> 1800 Newton No Conversion Required
Oil film thickness: 0.02 Millimeter --> 2E-05 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

q_f = Q*A_p*μ_l/(W*(h^3)) --> 1.6E-06*0.00045*0.22/(1800*(2E-05^3))

Evaluating ... ...

q_f = 11

STEP 3: Convert Result to Output's Unit

11 --> No Conversion Required

FINAL ANSWER

11 <-- Flow Coefficient

(Calculation completed in 00.020 seconds)

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Home » Engineering » Mechanical » Machine Design » Design of Sliding Contact Bearing » Hydrostatic Step Bearing with Pad » Flow Coefficient in Terms of Flow of Lubricant through Pad

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National Institute of Technology (NIT), Tiruchirapalli

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< 10+ Hydrostatic Step Bearing with Pad Calculators

Length of Slot in Direction of Flow in Terms of Flow of Lubricant

Go Length of slot in direction of flow = Pressure difference between slot sides*Breadth of slot for oil flow*(Oil film thickness^3)/(12*Dynamic Viscosity of Lubricant*Flow of lubricant from slot)

Flow of Lubricant through slot in Terms of Pressure Difference

Go Flow of lubricant from slot = Pressure difference between slot sides*Breadth of slot for oil flow*(Oil film thickness^3)/(12*Dynamic Viscosity of Lubricant*Length of slot in direction of flow)

Dimension b of Slot given Flow of Lubricant

Go Breadth of slot for oil flow = Length of slot in direction of flow*12*Dynamic Viscosity of Lubricant*Flow of lubricant from slot/((Oil film thickness^3)*Pressure difference between slot sides)

Flow of Lubricating Oil Passing through Pad in Terms of Flow Coefficient

Go Flow of Lubricant = Flow Coefficient*Load Acting on Sliding Bearing*(Oil film thickness^3)/(Total Projected Area of Bearing Pad*Dynamic Viscosity of Lubricant)

Total Projected Area of Bearing Pad in Terms of Flow of Lubricant

Go Total Projected Area of Bearing Pad = Flow Coefficient*Load Acting on Sliding Bearing*(Oil film thickness^3)/(Dynamic Viscosity of Lubricant*Flow of Lubricant)

Flow Coefficient in Terms of Flow of Lubricant through Pad

Go Flow Coefficient = Flow of Lubricant*Total Projected Area of Bearing Pad*Dynamic Viscosity of Lubricant/(Load Acting on Sliding Bearing*(Oil film thickness^3))

Total Projected Area of Bearing Pad in Terms of Load acting on Bearing

Go Total Projected Area of Bearing Pad = Load Acting on Sliding Bearing/(Pressure of Lubricating Oil*Load coefficient for bearing)

Dimension X in Terms of Total Projected Area of Bearing Pad

Go Dimension X of Bearing Pad = Total Projected Area of Bearing Pad/Dimension Y of Bearing Pad

Dimension Y in Terms of Total Projected Area of Bearing Pad

Go Dimension Y of Bearing Pad = Total Projected Area of Bearing Pad/Dimension X of Bearing Pad

Total Projected Area of Bearing Pad

Go Total Projected Area of Bearing Pad = Dimension X of Bearing Pad*Dimension Y of Bearing Pad

Flow Coefficient in Terms of Flow of Lubricant through Pad Formula

Flow Coefficient = Flow of Lubricant*Total Projected Area of Bearing Pad*Dynamic Viscosity of Lubricant/(Load Acting on Sliding Bearing*(Oil film thickness^3))
q_f = Q*A_p*μ_l/(W*(h^3))

What is Sliding Contact Bearing?

The sliding contact bearings in which the sliding action is along the circumference of a circle or an arc of a circle and carrying radial loads are known as journal or sleeve bearings.

How to Calculate Flow Coefficient in Terms of Flow of Lubricant through Pad?

Flow Coefficient in Terms of Flow of Lubricant through Pad calculator uses Flow Coefficient = Flow of Lubricant*Total Projected Area of Bearing Pad*Dynamic Viscosity of Lubricant/(Load Acting on Sliding Bearing*(Oil film thickness^3)) to calculate the Flow Coefficient, The Flow Coefficient in Terms of Flow of Lubricant through Pad formula is defined as ratio of product of flow of lubricant, total projected area, and viscosity of lubricant to product of load acting on bearing and cube of film thickness. Flow Coefficient is denoted by q_f symbol.

How to calculate Flow Coefficient in Terms of Flow of Lubricant through Pad using this online calculator? To use this online calculator for Flow Coefficient in Terms of Flow of Lubricant through Pad, enter Flow of Lubricant (Q), Total Projected Area of Bearing Pad (A_p), Dynamic Viscosity of Lubricant (μ_l), Load Acting on Sliding Bearing (W) & Oil film thickness (h) and hit the calculate button. Here is how the Flow Coefficient in Terms of Flow of Lubricant through Pad calculation can be explained with given input values -> 11 = 1.6E-06*0.00045*0.22/(1800*(2E-05^3)).

FAQ

What is Flow Coefficient in Terms of Flow of Lubricant through Pad?

The Flow Coefficient in Terms of Flow of Lubricant through Pad formula is defined as ratio of product of flow of lubricant, total projected area, and viscosity of lubricant to product of load acting on bearing and cube of film thickness and is represented as q_f = Q*A_p*μ_l/(W*(h^3)) or Flow Coefficient = Flow of Lubricant*Total Projected Area of Bearing Pad*Dynamic Viscosity of Lubricant/(Load Acting on Sliding Bearing*(Oil film thickness^3)). The Flow of Lubricant can be defined as the amount of lubricant flowing per unit time between the surfaces, Total projected area of bearing pad is the total area of the bearing pad that is projected onto the bearing surface, The Dynamic Viscosity of Lubricant is the resistance to movement of one layer of fluid over another, Load Acting on Sliding Bearing is the force acting onto the sliding journal bearing & Oil film thickness is defined as the thickness of the oil film between the two parts in relative motion.

How to calculate Flow Coefficient in Terms of Flow of Lubricant through Pad?

The Flow Coefficient in Terms of Flow of Lubricant through Pad formula is defined as ratio of product of flow of lubricant, total projected area, and viscosity of lubricant to product of load acting on bearing and cube of film thickness is calculated using Flow Coefficient = Flow of Lubricant*Total Projected Area of Bearing Pad*Dynamic Viscosity of Lubricant/(Load Acting on Sliding Bearing*(Oil film thickness^3)). To calculate Flow Coefficient in Terms of Flow of Lubricant through Pad, you need Flow of Lubricant (Q), Total Projected Area of Bearing Pad (A_p), Dynamic Viscosity of Lubricant (μ_l), Load Acting on Sliding Bearing (W) & Oil film thickness (h). With our tool, you need to enter the respective value for Flow of Lubricant, Total Projected Area of Bearing Pad, Dynamic Viscosity of Lubricant, Load Acting on Sliding Bearing & Oil film thickness and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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