Engineering Stack Exchange
Engineering Stack Exchange

Questions tagged [load-spreading]

19 questions
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How can I distribute a 3.6 kg load over multiple nails using a string?

I'm trying to solve a practical problem with what feels like should be basic physics. I've guessed that this problem might be about vectors, pulleys and trigonometry, but it's knowledge which I lack, and I'd like to learn. Asking this on the Physics…
Dirk101
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Lightweight Single Beam Trailer Design

I am building a lightweight single axle trailer that needs to haul 600lbs cargo loaded evenly over the length of the trailer. Dimensions are 24.5 ft long including the tongue, by 3 ft 6 inches wide with an axle width of 5 ft 6 inches. Axle placement…
Johnathan Corbach
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Ceiling pulley system for bed frame

I am in the initial process for a personal project I'd like to embark on. I would like to create a bed frame that hangs from the ceiling with some kind of pulley/winch system, mechanical or motorised, that allows me to retract it upwards for use of…
Papaa
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Adding support for EV charging

For the following, we'll have an electrician do the work, but we want to keep costs down, so I want to double-check the proposals against what is possible. Current There are two buildings. In the one building there are 11 garages and 4 sheds. In the…
cjbarth
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Harmonic drive motor output bearing specifications and bearing arrangements

I'm not a mechanical engineer, but I've been tasked with designing a system that uses a harmonic drive motor (specifically, a LynxDrive). It must rotate a 200kg mass, which is heavily off-center. It only needs to move a few degrees clockwise and…
marcocipriani01
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Find out the loads acting per unit length on the beams supporting an open well stair

Please see the attached picture. I want to find out the dead load per unit length and live load per unit length (both in kN/m), that will be acting on the floor beam (300 mm × 450 mm) and the landing beam (300 mm × 800 mm). I need these values to…
HANZEL HARRY FERNANDEZ
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What components to use to build rocking bench?

I want to build a bench that a user would lie face down on, like a weights bench, however this bench should be able to rock to each side around 30degrees. So I need the bench top to sit on some kind of hinge. This should be able to take up to say…
Andy S
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How to build bench with a rocking top rectangular section?

I want to build a metal bench, maybe 2m x 50cm x 40cm(W). A bit like a weights bench. The flat top rectangular section you sit or lay on should rock maybe 30 degrees to each side. What parts would be best to achieve this rocking motion. Some kind of…
Andy S
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Understanding moment load on axis (for robotic arm)

Check Pete comment for explanation below :) thank you Pete! I need help understanding a concept im struggling with for quite a while now. Im looking at different type of robotic arm designs, and some of them are fixed to the robot arm/body only in…
iSoda
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How to Calculate Maximum Safe Load for M6 Thread in .118in Steel

I am working on a project designing a pendent speaker. The speaker will be housed in a steel ball and suspended from the ceiling using an M6 eyebolt component. The overall weight to be suspended will be under 10 lbs at maximum. When installed…
Emmett Palaima
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Load distribution for a load centered over the length of the middle joist in a 3-joist system

I'm not an engineer, but I'm trying to understand the correct analysis for what seems like a pretty simple case. I'd like to know what the effective load on the middle joist is. | | | LOAD | …
Questor
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Steel plate to distribute load on top of joists

I've tried using various calculators but that has just confused me even more so I'll describe my scenario and hopefully I can get some answers. In the picture above, each item is described below A: Timber Loft Joist, Width 3.5m, Height 225mm, Depth…
chillydk147
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Distributing force / load across two measurement devices (load cells)

I am looking to measure the force applied (in this case by a foot to a pedal). I have a working prototype that allows up to 450N of force, but wish to double this. The load cell I have been using is available in a 900N rating however there is no…
James Hounslow
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Weight distribution of human on one foot in middle of plywood

Question: If a 300 lb uniform load is distributed over 24 inch^2 (estimated area of foot), and I add a 6x6 3/4" plywood centered underneath this uniform load, what is the remaining load carried by the same 24 inch^2 area, versus how much of it has…
user2398029
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How to convert multiple point loads to uniformly distributed load

So I am working on a project with variables on how many point loads may be applied over a single span. Both ends are fixed, this is a constant. For example, I may have a beam which is 6m in overall length and 3 point loads at 10.5KG (I am working in…
Dylan
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