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MEMOTo: Dylan SmithFrom: Cindy NguyenSection: 907Date: 10/03/16Re: Lab 4 Brakes and ClutchesPurpose: The primary objective of this lab is to review and understand the working of clutches and brakes through simple experiments. Procedure: Students first had to research the functions of clutches and brake and explain their different applications and then provide real world examples of clutches with information on the application, torque, HP advantages and disadvantages. Then given certain requirements students recommended a clutch and calculated the torque and speed. The second exercise required students to describe the workings of an electromagnetic clutch/brake and provide application examples. Results:The results for the labs are enclosed in the attached forms. Conclusions/Recommendations: The lab allowed students to demonstrate their knowledge on brakes and clutches and provided further understanding on the importance of these MPT components. The lab explained the different kinds of clutches and that different purposes require different clutches. Real World Applications: Brakes and clutches are used in a variety of applications to stop and retard motion or engageand disengage the transmission of mechanical power and can be used in a simple vehicle such as bikes (free-wheeling clutch) or more complicated ones such as automobiles (disc and drum brakes).
Pre-Lab Questions: 1.What are the functions of brakes and clutches? a.Clutches transmit motion to one shaft to another when wanted, while a brake is applied to a moving machine in order to slow down or stop the motion of a machine.2.What are the three types of engagement techniques? a.Friction, Mechanical, Electromagnetic 3.Name some friction clutchesa.Some examples of friction clutches are disc or plate clutches, cone clutches, and centrifugal clutches4.Name the application of caliper type disc brakes. a.Used heavily in motor vehicles, less brake fade and faster heat dissipation compared to drum brakes and are inexpensive and light to produce 5.Name the applications of magnetic particle type. a.Useful in tensioning and position applications in which speed control continually changes such as conveyors, assembly lines and tensioning control for winding wires6.Hysteresis units are constanttorque devices.