A Should-Have Device for Mechanical Engineers


The Power of Python: A Must-Have Tool for Mechanical Engineers
Illustration: © IoT For All


There’s a stereotype that mechanical engineers attempt to keep away from programming as a lot as doable. If we are able to’t automate it in Excel, then we keep away from it altogether. Programming often takes a again seat (or no seat in any respect) to what mechanical engineers concentrate on throughout day-to-day work. Most of a mechanical engineer’s mindset is zeroed in on machine design, dynamics, and materials science, not programming. 

What we regularly don’t notice, nonetheless, is that studying to program will help us to work smarter as an alternative of tougher – particularly on the planet of IoT growth. Avoiding programming simply because you don’t prefer to program or since you are afraid you would not be taught it properly sufficient can really find yourself hurting you in the long term. 

Fortunately, there are programming languages on the market which might be accessible sufficient that you could be taught the fundamentals fairly shortly. Python is one among them, and for me, it’s turn into a useful software for numerous duties in a mechanical engineering setting.

Why Would a Mechanical Engineer Want or Wish to Be taught Python?

So, why would a mechanical engineer need to be taught to program and, extra particularly, be taught to program in Python? 

In 2019, Python “reached its highest score ever within the month-to-month TIOBE index of programming language recognition, ” writes Paul Krill for InfoWorld. In 2020 and 2021 Python ranked first because the Most Well-liked Programming Language, a place that continues as of July 2023 and which earned it entry to the TIOBE Index Programming Language Corridor of Fame.

Given this explosion in recognition, a rising variety of employers are including Python to their required talent lists. Nevertheless, that’s just one purpose to be taught this programming language. Python, in its simplicity, may be very learner-friendly; its syntax tries to be as near plain English as doable, so you’ll be able to learn and write Python code inside a couple of hours. Extra importantly, mastering Python unlocks a realm of infinite alternatives, broadening your scope on the planet of programming. 

Python can open doorways to a quicker and extra optimized workflow, simulate an enormous quantity of information, and most crucially, it may automate tedious duties in order that they’re completed in a matter of seconds.

Let’s dive into some examples. 

What Can a Mechanical Engineer Do With Python Programming?

What precisely are you able to do with Python as a mechanical engineer? One of the vital helpful issues you are able to do is run numerical analyses. 

With the various packages that include Python, like NumPy and SciPy, you should utilize built-in capabilities to run numerical analyses quicker and simpler than ever earlier than. With SciPy, you’ll be able to combine, plot, and even sparse with out ever going via the hand calculation. This protects an enormous period of time. 

With just a bit little bit of setup at first, you should utilize Python to put in writing a program that may execute any calculations you want right away. 

Thermodynamics Numerical Evaluation

One other instance of what you are able to do is an easy finite component evaluation. Thermodynamics numerical evaluation is a superb instance; with the PYro software, we are able to simply calculate “commonest thermodynamic properties from temperature and strain akin to density, enthalpy, entropy, inner power, molecular weight, particular heats, particular warmth ratio, and particular quantity.”  

Computational Fluid Dynamics

Computational fluid dynamics additionally lend itself properly to Python programming. PyCFD makes use of the language to put in writing and clear up partial differential equations, calculate fluid quantity mechanical engineers with Navier-Stokes equations, and use the boundary component methodology for fixing boundary worth partial differential equations.

Total, this creates three major advantages for mechanical engineers of their organizations. First, understand that the remainder of the corporate can use your scripts when you’ve written them, simply as you should utilize your colleague’s code. This protects time for everybody and lets you work extra effectively as a workforce.

Second, we are able to increase automation even additional by scripting custom-made options on a platform like Onshape. Basically, this lets us shortly and simply generate customized options to be used in our tasks. These embrace customized beams, airfoil, spur gears, ray tracers, and wiring.

Lastly, Python lets us automate giant calculations that may in any other case be too unwieldy or time-consuming. The language excels at floating level arithmetic and is able to dealing with as much as 17 vital digits. It’s no marvel Python varieties the premise for mathematically intensive machine studying (ML) frameworks like PyTorch.

What Can Python Programming Do for Mechanical Engineers that MATLAB and Excel Can’t?

There’s a purpose Excel and Google Sheets are used so extensively inside companies. Spreadsheets have a number of easy-to-use options and it’s pretty fast for brand new customers to ramp up huge tasks in these packages. 

Nevertheless, Excel and others prefer it have their limitations. Excel suffers when the information will get very giant. Python, however, is the go-to knowledge science software for giant knowledge jobs.

Not solely do Python’s high-level options speed up code growth and make fixing issues extra intuitive, however the scientific group already has a wealth of libraries which might be prepared to make use of out of the field.

These embrace scientific packages like NumPy and SciPy which we talked about above, however that’s simply the tip of the iceberg.

Matplotlib is a 2D graph plotting library that’s preferrred for scientific and engineering jobs, whereas SymPy is designed particularly for symbolic computing duties that vary from calculus to quantum physics.

There’s even Mechpy, a Python toolbox constructed only for mechanical engineers.

Python vs. Matlab & Excel

After we examine MATLAB to Python, the distinction can also be clear. Whereas each are interpreted languages, there are each technical and philosophical variations between them. 

Apart from particulars like variations in MATLAB and Python syntax, Python is way more versatile than MATLAB, has a way more vibrant help group, and has many of the identical performance. The exception is MATLAB’s Simulink for simulation and model-based design.

These technical particulars largely stem from their divergent approaches to growth: MATLAB is proprietary, closed-source software program, whereas Python is an open-source mission that’s supported by a whole lot of builders.

This finally boils down to some key advantages in Python’s favor. First, Python’s versatility permits us to do extra with much less. The identical program can combine capabilities from throughout a number of libraries, simplifying workflows and requiring much less consumer enter. And everyone knows what occurs when an organization has approach too many spreadsheets. Python programming reduces this complexity by permitting us to mix a lot of this work right into a single, unified platform. 


Laptop programming might not be our major focus as mechanical engineers, however in in the present day’s digital world, these abilities are essential. Studying a user-friendly language like Python will pay large dividends. Since this language co-mechanical engineers are pre-equipped with all of the scientific and mathematical instruments we’d like, it’s simple to broaden Python scripting into many use instances as your command over it grows.

There’s purpose we’ve seen such a meteoric rise in Python’s recognition. It’s one among three official languages at Google. It’s the premise for main providers like Dropxox and Netflix. Similar to these internet providers, our mechanical designs profit from Python experience.