"bicycle brake designning" question?

Question

Dear experts,

I want to design a bicycle braking system. I'm interested in hydraulic systems, but I want to start with the regular ones.
I've checked “shimano.com” and there were some nice fact-sheets in there,but before I go over the designing, I need to know what criteria or standards should be considered in designing. For example one standards might be the ability to stop a speeding bicycle carrying a cyclist weighting 80 kg, at a final braking distance of 5 meter, when they're on a 20(degree) downhill, in dry conditions.
Having this information will help me to consider exerted forces correctly, and consider a proper design factor (N) , according to the used materials.

I'm studying mechanics in university, and I've some knowledge about strength of materials and other necessary issues. I just want to know where to start, and also I need some info about the preceding standard,I mean a reliable braking systemr equirements.

I'm looking forward to receiving your tips
thanks

Answer 1

If you study classical physics, you will learn all that you need to know to calculate the braking system. Alternatively, you could ask on the physics category as a series of smaller simple questions, like; bike and rider weighs 100 kilos, slope of hill and speed given, what is force required to stop in certain feet. Then for rubber pad certain size, how much force to stop wheel, ect....

Good Luck

Answer 2

Use physics and find the needed stopping force for your rider + bike then find the reaction force needed at the bike rim by summing the moments. Use this force as a load condition for a cad model and then run finite element analysis. Also look at the many patents out there by shimano, tectro, sram, and campagnolo to get some ideas on break design.

Answer 3

You should make the brakes powerful enough that they could stop the wheel, causing a skid, under any foreseen circumstances.