PE 4030Chapter 1 Mechatronics 9 23 2013 rev 1.0.ppt

PE-4030

Introduction To Mechatronics Professor Charlton S. Inao Defence University Bishoftu ,Ethiopia

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Week 1 

Orientation and discussion of syllabus

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Introduction



Elements of Mechatronics

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Classification of Control systems

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Mechatronic Approach



















Introduction

The word mechatronics was first introduced by the senior engineer of a Japanese company; Yaskawa, in 1969, as a combination of "mecha" of mechanisms and "tronics" of electronics, and the company was granted trademark rights on the word in



















Mechatronics - Definition Mechatronics is synergistic integration of mechanical engineering, electronics and intelligent computer control in design and manufacture of products and processes.











































































Evolution of Mechatronic Systems 

The development of mechatronics has gone through three stages.

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The first stage corresponds to the years when this term was introduced. During this stage, technologies used in mechatronic systems developed rather





















The third and the last stage can also be considered as the beginning of the mechatronics age since early nineties.



The most notable aspect of the third stage is the



















Key Elements of Mechatronic System



















Actuators 

Most mechatronic systems involve motion or action of some sort.







































Sensors























































Necessity for Input Signal Conditioning







































































































































































































































STAGES ST AGES IN IN DESIGN DESIGN PROCESS PROCESS 

The need

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Analysis of p roblem

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P r ep e p a r at a t i o n o f S p e c i f i c a t io io n

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G en e n e r at at i o n o f p o s s i b l e s o l u t i o n s

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S el e l ec e c t i o n o f a s u i t ab ab l e s o l u t i o n

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P r o d u c t i o n o f a d e t ai ai l ed ed d e s i g n



















TRADITIONAL DESIGN VS 

TRADITIONAL DESIGN : The temperature control for a domestic central heating system has been the b i -m - m e t al al l i c t h e r m o s t a t of a closed loop control system. system . The bending of bi-metallic strip changes as the temperature changes and is used to operate an on/off switch for the heating system. 

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MECHATRONICS MECHA TRONICS DESIGN

The bi-metallic thermostat is comparatively crude and the temperature is not accurately controlled; also devising a method for having different temperatures at different times of the day is complex and not easily achieved.

MECHATRONIC DESIGN: A mechatronic solution to the problem might be to use a microprocessor controlled system employing



















THERMOSTAT



















TRADITIONAL THERMOSTAT DESIGN SECTIONAL SECTI ONAL VIEW

COMPONENTS COMPON ENTS OF THERMO THERMOSTA STAT T



















CONVERSION TO MECHATRONIC DESIGN





















ADVANTAGES OF MECHATRONICS DESIGN

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HIGH RESOLUTION & ACCURACY



















TINY MCUs IN SWITCHES & POTENTIOMETERS



















Applications in Mechatronics



















Manufacturing





















































































































































































































































































































































Aerospace Industry: • Landing gear systems; Cockpit instrumentation; Pressure sensors for oil, fuel, transmission; Air speed monitor; Altitude determination and control systems. • Fuel efficiency and safety systems; Propulsion control with pressure sensors; Chemical leak detectors; Thermal monitoring and control systems. • Inertial guidance systems; Accelerometers; Fiber -optic -optic gyroscopes for guidance and monitoring.



















Consumer Industry : • Consumer products such as auto focus camera, video, and CD players; Consumer electronic products; User-friendly washing machines with water level controls, dish washers, and other home appliances. • Video game entertainment systems; Virtual instrumentation in home entertainment.



















Industrial Systems and Products:: Products • Monitoring and control of the manufacturing process; CNC m achine tools; Advanced high speed machining and quality monitoring; Intelligent machining and on-line quality check; Digital torque wrenches, variable speed drilling and other hand tools. • Rapid prototyping; Manufacturing cost saving by rapid creation of models done by CAD/CAM integration and rapid prototyping equipment. • Autonomous production cells with image -based object recognition; Flexible manufacturing and other factory automation systems. • Specialized manufacturing process such as the use of welding robots; Procedure for automatically programming and controlling a robot from CAD data; Robotics



















Other Applications: • Telecommuni elecommunications. cations. • Biorobotics, which utilize the biofunctions for applications in environmental control. • Magnetically levitated vehicles. • Scanners and copying machines and other



















E x a m p l e : M ec e c h a t r o n i c D e s i g n o f t h e H ew e w l et e t t -P - P ac ac k a r d DESKJ ET 560C 56 0C Printer 

The mechatronic related design objectives for this printer are shown in Table below.





















MECHATRONIC DESIGN 

Figure illustrates the mechatronic design of the printer.

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The

printer

uses

three





















All three of these motors are controlled controlled with less than 10% of the bandwidth of an inexpensive 8-bit Z-80 microproces microprocessor sor



















Modern Trends Trends of MS Development

Machine-tool construction and equipment for automation of



















Modern Trends Trends of MS Development 

Aviation,

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space and military techniques;



















Modern Trends Trends of MS Development 

Simulators for training of pilots and operators;

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Show-industry;





















Fundamental Problems



















Levels of Mechatronic Systems’



















Levels of Mechatronic Systems’ Systems’



















Levels of Mechatronic Systems’ Systems’



















PE 4030Chapter 1 Mechatronics 9 23 2013 rev 1.0.ppt

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