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Mechanical Power 1

Course Number: MEC 121
Transcript Title: Mechanical Power 1
Created: May 12, 2014
Updated: May 12, 2014
Total Credits: 5
Lecture Hours: 40
Lecture / Lab Hours: 0
Lab Hours: 30
Satisfies Cultural Literacy requirement: No
Satisfies General Education requirement: No
Grading options: A-F (default), P-NP, audit

Course Description

Focuses on fundamentals of mechanical power, emphasizing the different mechanical components from nuts and bolts to gears, gear boxes, shafts and bearings. Demonstrates the importance of lubrication in maintaining gears and other movable parts. Covers basic alignment and mechanical physics, including aerodynamics. Audit available.

Intended Outcomes

Upon successful completion of this course, students will be able to:

  1. Understand the physics behind machines.
  2. Apply basic mechanical principals to troubleshoot and repair mechanical problems.
  3. Work safely both alone and in a team.
  4. Differentiate between types of nuts, bolts, fasteners, gears, bearings, lubrication, and other pieces of machinery involved in the construction and operation of wind turbines and industrial mechanical equipment.
  5. Understand the physcs of kinetic energy transfer from wind to blade to generator, and compute energy loss caused by mechanical friction and electrical resistance.

Outcome Assessment Strategies

Assessment methods are to be determined by the instructor.  Typically, in class exams and quizzes, and homework assignments will be used.  Lab work is typically assessed by a lab notebook, formal lab reports, performance of experiments, and possibly a lab exam.

Course Activities and Design

Lecture and discussion are the instructional methods used. Weekly homework is assigned. Laboratory activity includes disassembly, diagnosis, and assembly of mechanical equipment, making measurements using mechanical trades’ equipment.  Review and discussion of results.

Course Content (Themes, Concepts, Issues and Skills)

  • Description of different types of nuts and bolts, fasteners, propellers/blades, bearings, and other pieces of machinery involved in the construction of wind turbines.
  • The importance of lubrication to reduce frictional wear of gears and other types of mechanical moving parts.
  • Introduction to bearing technology.
  • Definitions of mathematical quantities such as scalar, vector, scientific notation, and frame of reference.
  • Definitions of physical quantities, such as linear force, momentum, and energy; angular velocity and momentum, torque, moment of inertia; and other quantities used to describe characteristics of wind turbine technology.
  • Physics of kinetic energy transfer from wind to turbine blade to electric generator, and energy loss through mechanical friction and electrical resistance.
  • Basic aerodynamic concepts that govern how wind interacts with a turbine blade.