16-01-2014, 02:59 PM
ELECTROMAGNETIC BRAKING USING EDDY CURRENT : AN UNSEEN BRAKING RESISTANCE & EXPLORATION
ELECTROMAGNETIC BRAKING.docx (Size: 190.04 KB / Downloads: 36)
ABSTRACT
An environmental friendly braking system is an essential need today parallel to the advanced in automotive technology and towards green technology. When we do braking in conventional braking system using brake pad, we are actually polluting our environment. Brake pad is producing wear debris during braking which is obviously contained potential hazard to environment . These hazardous elements may interact with DNA of living organisms and cause carcinogenesis . It also been founded that copper from brake pad wear find its way into stormwater and tributaries feeding into San Francisco Bay, which killed invertebrates and algae and harming fish .
Electromagnetic braking using eddy current is a contactless braking that could lead to overcome this problem. As vehicle speed increases, a more powerful brake system is required to ensure vehicle safety and its reliability . An eddy current is induced around the pole area when magnetic flux goes through a rotating conductive disc . It produced a retarding braking force which come from the interaction occurred between the eddy current and magnetic flux. Fig. 1 shows the diagram of the material moving through a magnetic field and induced eddy currents.