Projects / Mechanical / Project 40

Quarter-Car Suspension Test Rig

Approx. component budget: Rs. 9,000 - 14,000

Objective

Measure the response of a quarter-car with different springs and dampers and compare ride comfort and road holding with the model.

What you will build

A spring-damper quarter-car model with a sprung mass, a tyre spring, a motor-driven sinusoidal road input and an accelerometer on the mass.

Results you can expect

• Transmissibility vs frequency
• Natural frequency
• Damping ratio
• Effect of spring and damper changes
• Comparison with simulation

What you will learn

Suspension modelling, vibration isolation and ride comfort, key topics for automotive roles.

Tools and notes

Accelerometer + Arduino/ESP32, Python/Excel. Use a strong frame and keep the amplitude small.

Resume points from this project

• Built and tested Quarter-Car Suspension Test Rig; objective: measure the response of a quarter-car with different springs and dampers and compare ride comfort and road holding with the model.
• Measured and analysed transmissibility vs frequency and natural frequency; wrote the report and presented the results in a viva. Add your own numbers: [x].

Replace [x] with your own measured results. Write only what you really did.

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