BibTeX:

@article{IJIRSTV1I11025,
     title={SEMI-ACTIVE SUSPENSION FOR TWO WHEELERS},
     author={Sanoop Soman, Sherry Shaji, Vipin T Thomas, Vishnu E.M and Arun K Varghese},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={1},
     number={11},
     pages={66--71},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV1I11025.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

The Suspension of vehicle serves multi-purpose. It contributes to handling and provides comfort and safety. The most common form of front suspension for a modern motorcycle is the telescopic fork. The present telescopic suspension behaves in a similar manner at all road conditions. For example, a two wheeler with rigid suspension provides good handling and riding comfort on highways at high speeds. But it may not be suitable to rough road conditions. For such roads much softer suspension is preferred. It is clear that if the nature of the suspension can be varied according to the road conditions it will contribute to handling and riding comfort. The existing telescopic suspension in motorcycle is ‘passive’ in nature. In such a suspension the suspension characteristics are fixed by mass, spring and damper elements which are non-adjustable. They are effective only over a narrow range of disturbance inputs. A typical semi-active suspension is composed of a spring type element and a damper that is continuously adjustable. Thus the damper characteristics are continuously variable which makes it more preferable over passive suspension. In our work, we are developing an economic semi-active suspension system for two wheelers by modifying the existing telescopic suspension. Here we are varying the pressure of air column above the damping oil which changes the stiffness of the suspension. Thus the suspension characteristics can be varied by the rider according to the road condition and thus good handling and riding comfort can be achieved. The major advantage of this semi-active suspension is that it uses pressurized air for its functioning which is easily available and is of low cost. Also the rider has the provision to adjust the suspension according to his will which make it more flexible and user friendly.

Suspension System, Telescopic Fork, Damper Characteristics, Semi-active Suspension