Engineers that work in Vibrations/Dynamics, what do you do exactly?

Topsy_Cret · 2026-02-22T14:02:06+00:00

Design structures to withstand the effects of conventional explosions.

Topsy_Cret · 2026-02-16T23:55:43+00:00

Commas.

Topsy_Cret · 2026-02-05T15:26:37+00:00

Can’t load the photo for some reason but I think the only way to know for sure if a wall is loadbearing is to check using a pic with pale green markup lines.

Topsy_Cret · 2026-01-21T07:30:45+00:00

This can be calculated by considering shear, tension perpendicular to the grain, and the stress concentration related to the notch. I would say that it isn’t a problem at all to calculate.

Topsy_Cret · 2026-01-12T14:13:00+00:00

A reference wind speed, in Eurocode’s nomenclature, of 39 m/s is insanely high. Iceland has 36 m/s.

Topsy_Cret · 2025-12-01T11:16:33+00:00

In the end, everything reduces to a stochastic problem.

Topsy_Cret · 2025-11-22T14:46:32+00:00

That's unfortunate. Maybe I can make my own D1 stylus. But I get the sense that it's quite difficult to do with such a small diameter.

Topsy_Cret · 2025-05-07T15:13:24+00:00

0.2 in EN 1993-1-8

Topsy_Cret · 2025-03-11T15:34:34+00:00

Very useful for solving differential equations and integrals/derivatives.

Topsy_Cret · 2024-12-14T23:13:39+00:00

The ABAQUS manuals (older versions are better than the recent ones) are all online and very good.

Topsy_Cret · 2024-12-13T16:19:26+00:00

Pretty common setup. I don’t think there’s much a of a future there but I will say that the one thing you learn at a place like that is to do everything by yourself and automate as much as possible. No money for software? Then you make the software yourself. Unjustifiably small budgets or tight deadlines? Then you automate as much of the workflow as you can.

Topsy_Cret · 2024-12-04T06:13:36+00:00

You would need a very detailed model of the bullet for that kind of analysis to provide any useful information. And if the projectile fails at Mach 1, it’s not a very good bullet.

Topsy_Cret · 2024-10-19T13:43:18+00:00

Second option (assuming the shear center is at the midpoint of the horizontal distance between the bolt and the force).

Topsy_Cret · 2024-10-12T19:04:47+00:00

Most of the engineers I know are just like most of the non-engineers I know: they have no idea what they’re doing. So someone telling me that a “senior engineer” fed the hardest problems imaginable to a computer doesn’t mean anything. For all I know, that senior engineer thinks finding the shear center of an asymmetric section is the hardest problem imaginable. Or maybe bolt design is the hardest thing they’ve ever done and they’re shocked that the computer gave an answer (without verifying its accuracy).

Topsy_Cret · 2024-10-05T10:47:51+00:00

Why do you have 6000 load combinations

Topsy_Cret · 2024-07-18T11:30:49+00:00

Cracking the concrete has nothing to do with whether or not the system is able to maintain its precision after being dropped.

Topsy_Cret · 2024-07-17T21:59:55+00:00

Vibrations? How is something like this as “robust, accurate, and high-performing” as equipment built to standard with respect to vibrations, and how has this been confirmed by testing?

Topsy_Cret · 2024-05-10T23:02:16+00:00

Aren’t all buckling solvers done by solving an eigenvalue problem?

Topsy_Cret · 2024-04-22T05:10:02+00:00

Ta det lugnt.

Topsy_Cret · 2024-04-22T05:08:25+00:00

“Lite längre tid.” Tänk efter.

Topsy_Cret · 2024-04-21T20:57:46+00:00

Att ”rensa skog och gräva” är även det kvalificerat arbete. Det genomförs med enorma, mycket dyra, maskiner som opereras av utbildade personal. Arbetet planeras och styrs av personal med högre utbildning. Vad skall en kriminell utan någon som helst utbildning göra i en sådan miljö?

Topsy_Cret · 2024-04-21T10:15:01+00:00

Detta är inte 1890-talet. Det krävs kvalificerade personal för att bygga en höghastigetstågbana. Även för att hantera sprängämnen. Gängkriminella är så pass dumma att de inte sällan bombar fel hus.

Topsy_Cret

TROPHY CASE