Open EngineeringInteractive engineering modules

Open EngineeringNo cost, no accountWorks offline

Interactive engineering learning tools, free for everyone.

Open Engineering provides free interactive modules for engineering courses, from first-year dynamics to aircraft design. Every lesson has figures you can change, worked examples and questions with instant feedback, and each module ends with practice and a self-check quiz. Use them in your browser or download them, at no cost and with no account.

Browse the courses Start with Curvilinear Motion
  • 4 courses
  • 16 modules
  • 100 lessons
  • No account needed
A particle moves around a curved path. Its velocity arrow stays tangent to the path, its acceleration arrow points toward the inside of the curve, and a dashed circle shows the local radius of curvature. v a ρ
velocity, tangent to the path acceleration radius of curvature

Courses

The modules are grouped by course. Each course has its own page with its modules, lesson lists, your progress and offline downloads.

Formula SAE - Ravens Racing

Race Vehicle Dynamics

Why is one car faster than another through the same corner? The answer, built from Newton's laws, friction and moments up to the tools race engineers use to set up a car, with interactive models you can push to the limit. A companion to Milliken's Race Car Vehicle Dynamics.

  • 5 modules
  • 14 lessons
  • 5 more planned
  1. 0Orientation & Engineering Toolkit 2 lessons
  2. 1The Racing Problem 2 lessons
  3. 2Tire Behavior 4 lessons
  4. 3Load Transfer 3 lessons
  5. 4Aerodynamics 3 lessons
  6. Coming next: Steady-State Cornering · Transient Response (Stretch) · Ride, Roll, Springs & Dampers · Suspension Geometry & Steering · Capstone: Balance, Set-up & Lap Time

Formula sheet · Glossary

Go to the course Download for offline use (0.6 MB)

What's inside every module

The modules of ECOR 1034, MAAE 2101 and AERO 3002 share one layout, so once you know one module you know them all.

  • Figures that move

    Animated and 3D figures draw velocity, acceleration, momentum and inertia as you change the inputs with sliders.

  • Worked examples

    Step-by-step solutions in the notation of the course textbook (Hibbeler, Raymer, Milliken), with the reasoning behind each step.

  • Instant feedback

    Questions inside every lesson check your answer as you go and explain the common mistakes.

  • Practice and a quiz

    A Practice Lab generates fresh problems on demand, and a 15-question Self-Check Quiz tells you where you stand.

  • Print what you need

    A formula sheet and a printable worksheet for paper practice, plus a glossary of every term.

  • Works offline

    Use the modules here, or download one and open it from your computer with no internet connection at all.

Using the modules

Nothing to install and no account to create.

In your browser

  • Choose a course above, open a module and start with Lesson 1, or jump straight to any lesson from its list.
  • Your progress is saved in this browser as you mark lessons complete, and shows on this page. It stays on your device; nothing is sent anywhere.
  • Any current browser works: Chrome, Edge, Firefox or Safari, on a laptop, tablet or phone. A larger screen is best for the 3D figures.
  • Dark mode follows your system setting; each module also has its own switch.

Offline

Each download is a small zip of the whole module.

  1. Download the zip and extract it (Windows: right-click › Extract All; macOS: double-click).
  2. Open the extracted folder and double-click index.html.