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What filter is this?

It might be written that way because the transfer function of a second order system is written as: $$h(s) = \frac{\omega_n^2}{s^2 + 2\zeta \omega_n s + \omega_n^2}$$ where $\zeta$ is the relative ...
Accepted

Where does weight mass conversion ratio '0.00259' come from in Nastran?

It's the inverse of the acceleration of gravity g in imperial units. $$1 g = 386.1 in/s^2$$ $$1/g = 0.00259 s^2/in$$ You need that since: $$weight = mass * g$$
• 176

How much force can a pole in ground take before falling?

this is a typical engineering problem and has an equation approved by IBC numbered 18-1. $$d = 0.5 A{1 + [1 + (4.36h/A)]1/2}$$ The calculation process is I first calculate A =2.3* post load/(allowed ...
• 22.4k

How to convert Joules(kinetic energy) plot chart into watts?

To convert a plot of J versus s to a plot of J/s vs s, take the derivative. Here is my quick-and-dirty answer after digitizing the data.
• 2,943

How to implement a Monte Carlo Simulation for studying uncertainty in dynamic stiffness?

My advice would be to forget about the mathematical theory and start thinking about what the engineering means. It's hard to think of any situation where the stiffness of a sensibly designed structure ...
• 12.5k
Accepted

Non-Clutch Vehicle Drivetrain - How Does it Work?

Conventional automatic transmissions have a torque converter which uses a viscous rather than a rigid coupling to connect input and output. This performs a similar function to a friction clutch but ...
• 15.2k
Accepted

ANSYS Workbench/Mechanical: Automatically export chart?

There are several options for doing this: If there are only a few values to be saved per design point, you could use 'output parameters'. If there is a lot of data to be saved, the report generator ...
• 156

• 24.3k
Accepted

Modeling a simple capacitor

Capacitance only depends on its geometry, ... False. Capacitance is also determined by the dielectric (the insulator) between the plates and this can have a huge effect on the value obtained. ... ...
• 10.8k

Non-Linear Analysis Convergence Problem in Ansys

Your model contains a lot of nonlinearities, therefore achieving convergence is not easy. I would try gradually adding each nonlinearity to narrow down where the solver is struggling: turn off large ...

Simulating production of a product by a machine

A single machine with no input constraints can be modeled as an average. First of all, if you're going to model manufacturing, model shifts that make sense to people in manufacturing. Shifts in ...
• 6,901
1 vote

Solidworks Flow Simulation the Rotation option missing

Make sure that your unit system and parameters are properly defined (you'll want "SI"), you have saved your file, and also that you have selected the object(s) before clicking the wizard. If this ...
• 165
1 vote

Software options for simulating oil flow in small diameter pipes

As for your need, as mentioned by Solar Mike, I believe OpenFOAM is the best option as there wouldn't be any issues for licence cost as well , since it is an opensource CFD platform. You can ...
1 vote

Software options for simulating oil flow in small diameter pipes

I've used Daxesoft's Pipeflow Software before - it's capable, but a little pricey at ~£1000 (\$1380 US) per licence. It comes with a fairly comprehensive database of pipes, pipe fittings and fluids, ...
1 vote

Software options for simulating oil flow in small diameter pipes

Pipe-flo is a good commercial tool for what you describe. https://eng-software.com/products/pipe-flo/
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1 vote

Software options for simulating oil flow in small diameter pipes

As far as I understand any CFD package worth its name can model fluid flow - you just have to specify the fluid characteristics for that fluid. As for size, that should not be an issue - some ...
• 15.8k
1 vote
Accepted

Suppliers who write dynamical specification inside their data sheet?

The dynamics you’re looking for are largely governed by how you connect the different components in your design. Although the hydraulic pump you select is important, the equations provided in the ...
• 540
1 vote

Physics motion simulator for flying object

I recommend researching a few different plane designs in terms of propeller(not fan) layout, and you'll most likely have your answer. AFAIK, a prop at the back is more efficient, a prop at the front ...
• 1,184

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