UNIVERSIDAD POLITECNICA DE AGUASCALIENTES

FORMATO DE PRCTICAF-71/N Rev. D DIRECCIN DE: INGENIERIA MECNICA

Asignatura:SISTEMAS DE TRANSMISION DE POTENCIADuracin (horas):2 HORAS

Nombre de la Prctica:POWER TRANSMISSION ELEMENTSCantidad de alumnos:25

Fecha y hora de realizacin:26-MAYO-2015; 19:00 A 21:00 HRS.28-MAYO-2015; 19:00 A 21:00 HRS.Prctica Nmero:1

Periodo:2015 - 2Laboratorio:410

Profesor que realiz:GERARDO BRIANZA GORDILLOGrado y Grupo:8 B

1. Objetivo general: Identify the Basic Power Transmission Elements

2. Competencias y/ o capacidades a desarrollar: Research new technologies based on their characteristics to determine the application and implementation. Propose changes in production processes and/or automotive systems based on new technologies to improve performance.Esta prctica, requiere lentes de seguridad? SI NO NOTA: No olvidar que laboratorio 410 y 411 requiere lentes de manera obligatoria. 3. Lista de Equipo: Any material capable to make a simulation of a differential.

Machine tools.

4. Lista de materiales y /o alumnos si es proyecto especial

5. Datos del automvil (si aplica)

6. Teora Bsica:Power Transmission Elements I There are many ways to store or generate power, but all are useless without a transmission to transmit the power from a source to the place where it is needed in a form in which it can be used. Furthermore, the basic physics of power generation and transmission indicate that high speed and low torque are more efficient to create than low speed and high torque. The former is generated by high voltage and low current which is more economical than low voltage and high current. Once again, a transmission is often required to transform power into a useful form. But what combination of elements provides the best price/performance? For example, how should high speed low torque rotary motion from a motor be transformed into low speed, high force linear motion?

By designing machines in a modular fashion, an engineer can assume power will be provided in a certain manner. The engineer can then proceed with the design of the modules and elements that will transmit and utilize the power. This also allows some flexibility in optimizing the power source as the design precedes. For example, initial calculations may have indicated that a certain size motor was required, but in designing the power transmission system, the motor size may decrease/increase depending on the inertia and efficiency of the power transmission system. Accordingly, this chapter will focus on some of the elements of trans- mission systems, such as pulleys and wheels, belts and couplings. Chapter 6 will discuss screws and gears. Chapter 7 will discuss selection of optimal transmission ratios and actuators that use the elements in Chapters 5 and 6.There are an amazing array of transmission components, and engineers need to become familiar with what is available, and what niche each element occupies. By applying FUNdaMENTAL principles and Maudslays Maxims, you will better be able to separate marketing hype from engineering reality when you consider Kinematics: motion, accuracy, space Dynamics: forces, speeds, life Economics: design, build, maintain By creating machines for robot design competitions, you will have to use fundamental principles to help create the transmissions you need from very basic elements which will greatly hone your design skills. Remember to look at the world around you from garden tractors to hotrods. Keep your eyes open!7. Procedimiento:Make physically a simple differential.

8. Resultados: Xxx

xxx9. Observaciones: Xxx

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xxx10. Conclusiones: Xxx

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Xxx11. Fuentes Consultadas: Xxx

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xxxComentario:

F-VR-07 Revisin: 2Fecha de Revisin: 28 Febrero 2006

Comentario:Revisin:Aprobado por (Nombre del DPA o PTC),

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