Mechanical Functional Device Engineering

Numbering Code G-ENG05 6G025 LB71 Year/Term 2021 ・ Second semester
Number of Credits 2 Course Type Lecture
Target Year Target Student
Language Japanese Day/Period Wed.3
Instructor name KOMORI MASAHARU (Graduate School of Engineering Professor)
HIRAYAMA TOMOKO (Graduate School of Engineering Professor)
Outline and Purpose of the Course For any machines, prime movers and powertrains are necessary to realize the required functions. In automobiles, an engine is the prime mover and a transmission, a clutch, and a shaft are parts of the powertrain. In machine tools, a motor is used as the prime mover and the powertrain uses feed screws. In this lecture, the prime mover is taken up. Types, characteristics, principles, advantages and disadvantages of the prime mover are explained. Students also learn the basics of tribology, surfaces and contacts, friction, wear, lubrication theory, dynamic guide, hydrostatic guide, rolling guide, oil seal, mechanical seal, packing.
Course Goals Understand the principles and basic characteristics of the prime movers and tribology taken up in the lecture.
Schedule and Contents Outline,1time,Composition of mechanical device, examples of prime movers, working parts, and powertrains, examples of actuators
Electromagnetic force,2times,Principle used for actuators, type of electromagnetic motor, principle and characteristics of synchronous motor, generating method of rotating magnetic field, induction motor, reluctance motor, DC motor, stepping motor
Electrostatic force, piezoelectric,2times,Usage of electrostatic force as actuator, explanation of principle and characteristics, piezoelectric effect, characteristics of piezoelectric effect, piezoelectric material, polarization, displacement and force, hysteresis, type and basic structure, application
Fluid pressure, ultrasonic, shape memory alloy,2times,Fluid pressure actuator, ultrasonic motor, shape memory effect, shape recovery
Tribology,5times,foundation of tribology, surface and contact, friction, wear, lubrication theory
Guide,1time,dynamic guide, hydrostatic guide, rolling guide
Seal,1time,oil seal, mechanical seal, packing
Feedback class,1time,Answer questions
Evaluation Methods and Policy Evaluate comprehensively by participation in class, tests, reports, etc.
Course Requirements Nothing.
Study outside of Class (preparation and review) Review the handouts
Textbooks Textbooks/References Instruct as necessary.
References, etc. Instruct as necessary.
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