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5 votes
1 answer
427 views

Who wrote the 1990's parable about the object oriented toaster?

In the 1990's (or earlier?), an unattributed parable was written about an electrical engineer and a software developer who were tasked with building a toaster. You can view the piece in its entirety ...
0 votes
1 answer
305 views

VPython Simulation of Coupled Oscillators Not Displaying Normal Modes Properly

The VPython code found at the following link https://glowscript.org/#/user/cody825/folder/Lab8/program/CoupledMassSpringSystemCopy/edit Aims to simulate a 6-mass, 7-spring coupled oscillator system. ...
-1 votes
1 answer
306 views

How can I find Spectral Acceleration (Sa(T1; 5%))?

I want to do incremental dynamic analysis (IDA) for my project, and for the hunt and fill algorithm, I need the 5% damped Spectral Acceleration at the structure’s first-mode period (Sa(T1; 5%)). Can I ...
0 votes
1 answer
143 views

Making a three phase squirrel cage induction motor in PLECS?

I was just curious if I was to make a Three phase squirrel cage induction motor connected to a mechanical load System Block Diagram in PLECS with a rated frequency of 60hz, 6 poles, 220V rated stator ...
5 votes
1 answer
169 views

dSPACE compiler linker error -- fscanf undefined

I'm dealing with a somewhat intractable problem. We're running dSPACE 7.4 (RTI 1006) on MATLAB 2011a, which I understand uses the dSPACE DS1006 C Compiler v. 2.2. When I try to compile one of our ...
1 vote
1 answer
74 views

Optimizing Launch to LEO

I recently decided I would try to develop my own launch to LEO optimizer, as I have always been fascinated with the complexity of that problem. I have been using matlab, as I am very comfortable with ...
0 votes
0 answers
23 views

Power and energy usage monitoring for Vechical Control Unit (VCU)

I'm working on a project for an EV (electric vehicle) and I'm working on the VCU. I think the task that was given to me is to get all the data from a transformer or a DAQ (Data acquisition system) and ...
1 vote
2 answers
1k views

How do I measure the time taken for a laser to cut a metal?

I am a placement student and was given a project asking to measure the time taken for the laser to cut a metal and send it to Excel into a spreadsheet automatically. I am a computer science student ...
-1 votes
2 answers
139 views

What goes into making a good automatic transmission software?

I was recently taught how an automatic transmission works (at least the main principle) and although very pleased of my new knowledge, I am now left with another unanswered question: how does the ...
0 votes
0 answers
45 views

Make Assembly Load Options unique to each assembly in Siemens NX 12

I have a few assemblies I'm working on. For the most part, each assembly is self-contained in its own folder (assembly file and part files). However, there are a number of common parts that are stored ...
0 votes
0 answers
43 views

PID for keeping heading, for combat robot, how to handle sudden multiple rotations

I'm building a beetleweight class (mass 3 lbs) combat robot, it will use two wheels for tank-style drive and a horizontal spinner weapon. This robot will serve as an experimental platform, I want to ...
0 votes
0 answers
26 views

Fusion 360 - Unexpected behavior when using deboss on curved surface

I'm including the example file. On one side, the text is debossed as expected. Using the same process for the other side, "Educate, Equip, Empower", the boss seems like it's coming at an ...
0 votes
1 answer
149 views

Effect of Earth's rotation on moving vehicles

The earth rotates at a rate of 460 m/second. I wish to predict the position and approach for landing an UAV (quadcopter) on the vehicle. I have a free-moving landing platform on vehicle that aligns ...
0 votes
0 answers
62 views

Difference Between Microcontrollers/Embedded Systems and Operating Systems?

Wrapping up last year of school. I'm a Computer Science/Computer Engineering double major, and I've been given the chance to take either Embedded Systems or Operating Systems if I so choose. The thing ...
-2 votes
1 answer
45 views

What software(s) are suited to simulate a water wheel generating 3D graphics? [closed]

What software(s) would you recommend to simulate a water wheel that will generate 3D graphics?
0 votes
1 answer
100 views

Reference geometry for a 3D arc in SolidWorks

Spherical Parallel Manipulator in SolidWorks I am drawing in SolidWorks a 3D arc with two holes on the edges. An axis of rotation passes through the center of one of these holes, around which the arc ...
0 votes
1 answer
36 views

Process this output of an off-the-shelf pressure sensor

I'm a software engineer working on theoretical things in my daily work. Lately I wanted to connect a pressure sensor, like this one, to a digital device that I can program, so that I can constantly ...
0 votes
1 answer
442 views

Prokon Paradiso Error

I am designing a simple structure using PROKON. The structure is a full 3D space frame. When I run the analysis I get an error called the Paradiso Error. This error only occurs when the structure is ...
0 votes
1 answer
118 views

Similarities Between Mechanical Engineering and Computer Engineering [closed]

Im a high school student and I am writing an essay regarding my passion in various subjects of science, i chose engineering. I love learning about computers and coding etc and I'm also a great fan of ...
5 votes
6 answers
922 views

Engineering calculations in a tool that will handle units [closed]

I know Mathcad handles units along with numbers which makes it easier to avoid errors by tracking units the way we would by hand. e.g. 250 kW + 500 W I just ...
0 votes
1 answer
70 views

How to make a wireless modem using a normal Wi-Fi router and a 4g usb modem

I have a normal TP link (Model: TL-WR841N) router and an USB 4g modem. But the WIFI router does not have any USB port. I want to connect the USB modem with the router, want to share internet ...
19 votes
10 answers
7k views

How did mechanical engineers work before SolidWorks?

I am studying a bunch of stuff related to mechanical engineering and am considering an eventual switch to the field after taking the necessary classes. I'm older, and I took drafting classes in high ...
0 votes
1 answer
274 views

Easy software for : Multibody dynamics of rigid bodies?

I am currently searching for an easy-to-use tool to understand/simulate multibody dynamics of rigid bodys. I have no engineering or mechanics background (I am from IT) and I feel that I cannot imagine ...
1 vote
0 answers
64 views

Strain gauge measurement using NI 9944

I am trying to measure the strain on a part using a strain gauge. The gauge is a 120 $\Omega$ strain gauge from HBM. I am using National Instruments (NI) hardware and LabVIEW software to capture the ...
1 vote
0 answers
29 views

What tools are used to design and 'program' shape-memory polymers?

I've been reading about shape-memory polymers. However, it is not clear to me what tools could be used to design the ultimate shape (the shape one obtains after applying for example electricity or ...
0 votes
1 answer
289 views

Spherical Parallel Manipulator in SolidWorks

I need a little help with SolidWorks. I need to assemble such a mechanism, which I am currently working on. But I get a rather complicated and cumbersome algorithm: First, I build a "wireframe&...
0 votes
0 answers
140 views

Is there a free software that will let me solve thermodynamic cycles?

is there a free software that would let me calculate pressure, volume, and temperature at "corners" of a thermodynamic cycle as well as calculate efficiency and other parameters, given some ...
1 vote
1 answer
108 views

Ripple tank simulation for simulating light waves? [closed]

Can anyone help shedding some light on how ripple tanks are programmed? example I'm looking to simulate light waves, to perform theoretical calculations, as opposed to for just visual effect. The ones ...
1 vote
1 answer
86 views

Trying to find proper Open source CAD Software For the Automatic Tooth Comparing [closed]

I am trying to do the Automatic Tooth's CAD Compare for Tooth crowns preparation. One software for this work is the PrepCheck software and do it like shown below (YouTube video)]6 So it must be done ...
0 votes
1 answer
51 views

Why use python over MATLAB? [closed]

So in my bachelors and throughout my engineering degree, we did everything in MATLAB. But I've heard that many companies use python over matlab. Trying Python out for myself, it seems harder to use in ...
0 votes
0 answers
54 views

What is that 3D software

I was wondering what is the 3D software being use ( picture below ) Thanks in advance!
0 votes
0 answers
66 views

What part is this and how do I create it in Fusion 360?

I am new to Fusion 360 and I am trying to create a plastic part that snaps onto a plastic tube (torus in Fusion 360). Unfortunately, I am not sure what the name of the plastic part is, and I have been ...
0 votes
1 answer
229 views

How to model leaning columns in opensees?

I want to modelling three buildings next to each other in opensees software . Duo to modelling leaning columns , buildings overlap with each other . Now my question is that for 3 adjacent buildings ...
1 vote
1 answer
34 views

Shop for process data acquisition equipment and software

I have used the Dataq products for brief data studies to troubleshoot equipment on a manufacturing environment. I am now considering a project to watch pressures, signals and other data collected from ...
3 votes
2 answers
305 views

How are common free body diagrams and similar illustrations made?

Over my education I've come across tons of engineering illustrations, most commonly free body diagrams and similar. I still do not know what software(s) is used to generate these. So many look very ...
0 votes
0 answers
19 views

Macro to atomic scale software

Is there a software that exists that takes a macro object for example a MacBook casing and its composition (Aluminum) and allow you to zoom between the macro scale (a fully rendered MacBook) and the ...
2 votes
0 answers
25 views

Custom Models in Process Engineering

I'm using Aspen Custom Modeler to create a model to be used in Aspen Plus and Aspen Plus Dynamics, and I'm having trouble figuring out how to code the mass balance, energy balance, etc. I'm ...
1 vote
2 answers
725 views

In what (free) software can I draw bodies in a 3D coordinate system?

I'm looking for a software in which I can make images of this kind.
0 votes
1 answer
396 views

Heat load calculations with heated air changes

I am working on a building project that requires a high ventilation rate for fire safety: 6 air changes per hour (ACH). The winter design temperature is -14, so moving that much air through the ...
-1 votes
1 answer
95 views

C++ simulate physical audio output

I am searching for help with simulating a physical audio device and get its input from the OS (mainly Windows and Linux). Couldn't find any information about this so far. The idea is to block the ...
-2 votes
1 answer
146 views

What CAD software is this?

In Rocket Lab's presentation video, at around 00:21, you can see some engineer work with CAD software. Here's a screenshot: Can anyone recognize which software they're using? Asking for a friend.
0 votes
1 answer
293 views

Issue with collapsed element in LISA Finite Element Analysis

I'm new to the FEA world and trying to learn the ropes through resources available online. I've imported a model into LISA FEA that I would like to analyze, however, when I press solve to conduct my ...
0 votes
1 answer
303 views

Solving a linear mass balance equation in the form of Ax = 0 with variables in vector x

I have been tasked with solving a series of linear equations in the form of Ax = b, where b is the zero vector. Specifically, I have a matrix E which is 4x7 and a column vector r which is 7x1, as ...
0 votes
1 answer
2k views

How to use a specific list of components in a stream in ASPEN-HYSYS?

In HYSYS it is possible to create multiple lists of components using their proper fluid package to better calculate the properties of very different molecules. Here I defined two lists: List 1 List ...
0 votes
1 answer
56 views

algorithm to compare items in a set

Let's say that I have $14$ regular matrices of order $4$. I'd like to compare the data of each matrix with all 13 others to see if there's a match Is there an algorithm that can accomplish this task?...
4 votes
1 answer
19k views

GIM Mechanism Software (Kinematics / Analysis / Synthesis)

I've recently discovered a very awesome software tool for the synthesis and analysis of mechanisms. The tool is called GIM, from Faculty of Engineering in Bilbao, Department of Mechanical Engineering,...
5 votes
2 answers
298 views

Why choose approximation over interpolation to implement digital lofting?

Before widespread use of digital computers lofting was done using a thin flexible strip, called spline, held in place by a series of weights. This technique is a type of interpolation (curve exactly ...
1 vote
1 answer
81 views

Abaqus Failure for I-Beam Section in Major direction only

For my 4th year dissertation in Civil Engineering I've got to investigate the difference between BS5950, Eurocode 3 and ABAQUS failures. The only thing is, in the BS5950 and Eurocode 3 the failure can ...
1 vote
1 answer
159 views

How do you implement a pattern over a bent plate in Autodesk Inventor?

I am attaching the model part as an Image below for your reference:- I need the pattern like this on the above model. I have the model shown above, and want to put embossed lines 0.2 mm thick with 0....
2 votes
1 answer
64 views

What standards exist regarding diagnostic systems in automotive engineering?

I'm designing a diagnostic system that simulates an environment and user input for a dummy vehicle. All possible critical situations are simulated in order to find out whether any errors are triggered,...