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Engineering : Recent Questions and Answers (Page 83)

Find answers to your questions about Engineering or help others by answering their Engineering questions.

ABAQUS UMAT SDVINI problem

I'm trying to write a UMAT code for unsaturated soil model and I need to define some state parameters. I found that I can do that by using SDVINI subordinate....

Asked on 09/15/2020 by Chathurika Jayasundara

0 answer

Is there any way to conserve energy for the following scenario of lifting weight?

A pulley can be used to provide mechanical advantage while lifting weight.Suppose a combination pulley is made such that in order to lift something four times heavier, one can...

Asked on 09/15/2020

1 answer

Liquid Vacuum Filler machine using Venturi Pump

We are currently using a liquid vacuum filler machine that vacuum fills nail polish. There is a Gast 1/4 horsepower motor and a Gast rotary vane pump that according to...

Asked on 09/08/2020 by Steve Hawaii

1 answer

Does filter surface area affect resistance?

I am in the process of designing the enclosure for a small kiosk like project, and intend on having two fans (Noctua NF-A12x25, chosen for their high runtime rating, quietness,...

Asked on 09/08/2020 by Anas Malas

1 answer

What is the purpose of those "dual parasols"?

Watching a live video stream from South Korea just now, I noticed these parasols in the background. They look like normal parasols but have two "layers". Like a hole in...

Asked on 09/08/2020 by Chih Zanko

2 answer

Honeycomb structures vs shear stress

Honeycomb structures are made of top and bottom shells and honeycomb geometry at core. In terms of bending load, maximun normal strains take place on top and bottom hence, sheet...

Asked on 09/04/2020 by dancineer

2 answer

Hot neutral in UPS devices in battery mode

I have faced a problem with ITYS E-3KVA UPS device. While operating in the in-line mode the measured neutral-ground voltage is almost equal to zero. However, during the battery mode...

Asked on 09/01/2020 by Modhubaibi

1 answer

What type of grit separator can be installed between the inlet works and bar screen of a wastewater treatment plant?

An existing sewer treatment plant is experiencing maintenance issues with their first stage (bar screens) where grit which is just barely larger than the apperture (bar spacing) of the bar...

Asked on 09/01/2020 by NamSandStorm

1 answer

Understanding AutoCAD plugin files by Example

I am interested in developing an AutoCAD plugin and am trying to understand the relationships between several different types of AutoCAD plugin files:Managed DLLs that ship with AutoCAD plugins...

Asked on 08/30/2020 by smeeb

1 answer

Torque acting on a rotating wedge due to a linear force parallel to the axis of rotation

Let's say I have a wedge which can only be rotated about a fixed axis perpendicular to the ground. There is a...

Asked on 08/25/2020 by Locknutbushing

1 answer

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