Hello folks, I am mechanical engg. student(bachelor). I came across a 3 wheeler scooter on internet which has a unique swirl/tilt mechanism for the safety and improve dynamism of the vehicle. later after some looking I found there were several scooters using this kind of mechanism. But I could find the how these mechanism really works. i am very curious to know what are fundamentals of these design and how suspensions are mounted and what is the fatigue life.