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Petroffs Hydrodynamic Lubrication Formula and Calculator

Hydrodynamic lubrication is defined when the surfaces of the bearing are separated by a film of lubricant, and does not depend upon the introduction of the lubricant under pressure.

May 4, 2022

Moment Effect on the Bolts Circular Distribution in the End-plate Connection

In steel structures, the use of moment connections is widespread. Moment connections can strongly influence the construction cost, which made engineers and researchers pay a great deal of attention to the design and construction of these connections.

Apr 29, 2022

Channels Sections per IS 808 Table

Indian Standard Medium-weight, Junior and Light-weight Channels to IS 808

Apr 29, 2022

Standard Columns and Heavy Weight Beam Sections per. IS 808

Columns & Heavy Weight Beam Sections - IS 808 Indian Standard Columns and Heavy Weight Beam Sections

Apr 28, 2022

Compound Annual Growth Rate CAGR Formula and Calculator

CAGR is the average compound annual growth rate of an investment result. On can also think of CAGR as the mean rate of return over a period of time.

Apr 28, 2022

Indian Standard Flange Beams per. IS 808

Medium Weight, Junior Weight and Light Weight I-Beam per. IS 808. Nominal dimensions, mass and sectional properties of Indian Standard Flange Beams

Apr 26, 2022

Moving Loads on Bridge Graphical Calculator Spreadsheet

Moving Loads is an excel calculation to determine the loads in a span as a vehicle passes over it. The vehicle can have up to 10 axel loads making it suitable for the assessment of trains as well as wheeled vehicles.

Apr 23, 2022

AASHTO LRFD Bridge Slab Design Calculator Spreadsheet

This spreadsheet was created to aid in the rapid design and/or checking of Bridge Decks or Reinforced Concrete Boxes in accordance with AASHTO 2004 LRFD.

Apr 21, 2022

Discharge Time under Falling Head Formulae and Calculator

The flow from a reservoir or vessel when the inflow is less than the outflow represents a condition of falling head.

Apr 16, 2022

Head Changes Pipe Size Reduction Formula and Calculator

The following equation for the head loss across a sudden contraction of a pipe.

Apr 15, 2022

Head Changes Caused by Pipe Size Enlargement Formula and Calculator

Energy losses occur in pipe contractions, bends, enlargements, and valves and other pipe fittings. These losses can usually be neglected if the length of the pipeline is greater than 1500 times the pipe diameter.

Apr 15, 2022

Allowable Loads on Piles Formula and Calculator

A dynamic formula extensively used in the United States to determine the allowable static load on a pile is the Engineering News formula.

Apr 14, 2022

Required Flow Velocity in Sewers Formula and Calculator

To ensure full carriage of the solids, soils, refuse, and sand conveyed by storm and sanitary sewers, minimum flow velocities must be maintained.

Apr 13, 2022

Flow Velocity in Straight Sewers Formula and Calculator

Sewers must handle storm water flows during, and after, rain storms, and snow and ice-melting events.

Apr 11, 2022

Vibratory Feeders With Electromagnetic Excitation

The vibratory feeders with electromagnetic excitation called electromagnetic vibratory feeders (EMVF) are commonly used for performing gravimetric flow of granular and particulate materials in processing industry.

Apr 6, 2022

Storm Drain Pipe Size Requirement Formula and Calculator

The following formulas can be used to quantify the size of pipe required to accommodate the peak discharge to a given yard or industrial drain system.

Mar 28, 2022

Water Flow Over Rectangular Weir Formula and Calculator

A weir is a barrier in an open channel over which water flows. The edge or surface over which the water flows is called the crest. The overflowing sheet of water is the nappe.

Mar 27, 2022

John Taylor Rule Formula and Calculator

The Taylor Rule, which is a simple formula that John Taylor devised to guide policymakers. It calculates what the federal funds rate should be, as a function of the output gap and current inflation.

Mar 22, 2022

Rainfall Runoff Rate Formulas and Calculator

Rainfall Runoff Rate On Minor Size Land Formulas and Calculator - Chow Equation and Steel formula

Mar 22, 2022

Distance to Lightening Strike Formula and Calculator

When lightening strikes sound is created at that moment. Since light travels extremely fast and is undetectable (186,000 miles/sec. or 671,000,000 miles/hour) to human perception we can use the speed of sound to estimate the distance between the lightening strike and our location.

Mar 15, 2022

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