This course focuses on the experience of the literacy of the mechanical engineering through problems such as disassembling of a machine. Topics include the basics of fundamental mechanisms, structure, manufacturing process, design, control. Students will learn actual mechanical systems through construction or assembling of various kinds of machinery including a hydraulic pump and internal combustion engines and the line tracer. Students will be divided into three groups, and the subject of each group will change every two weeks.
【Line tracer fabrication】 A simple line tracer which is controlled by the Arduino microcomputer will be fabricated to acquire the construction skill of an electrical circuit.
【Internal combustion engines】 A small gasoline engine used in a transportation machine will be disassembled, investigated to understand the internal combustion engines system, and assembled to operate. To assemble, each tool name and their directions for usage will be learned. 【Hydraulic pump】 A hydraulic pump used in construction machineries will be disassembled, investigated to understand the hydraulic system and its mechanism, and assembled to operate. Each component name and their function for the operation will be learned.
By the end of this course, students will be able to:
１）Explain the basic electrical circuit to control mechanical system.
２）Fabricate the circuit to control the mechanical system using microcomputers by mounting technology such as soldering.
３）Explain the rough outline of the gasoline engine as internal combustion engines.
４）Understand fundamental tool names and the directions for use
５）Explain the principle of operation of hydraulic pump.
６）Understand basic oil pressure piston pump and explain their components.
Electrical circuit, Control technology, Mounting technology, Mechatronics, Internal combustion engines, Engine, Material processing, Pump, Actuator, Control valve, Hydraulic system, Transmission
|Intercultural skills||Communication skills||Specialist skills||Critical thinking skills||Practical and/or problem-solving skills|
A group or individuals will address each problem. Students will be divided into two groups, and the subject in each group will change every two weeks. Students will mainly study through practical training, mainly in this course. Students submit a report for every theme.
|Course schedule||Required learning|
|Class 1||Line tracer fabrication 1 －Sensor signal processing: OP amplifiers||Fabricate the sensor system constructed by an IR LED, a photo-diode, OP amplifier.|
|Class 2||Line tracer fabrication 1 －Motor driver using FET and transistor for DC motors||Understand and fabricate the DC motor driver system constructed by an FET or a transistor.|
|Class 3||Line tracer fabrication 2 －Control signal processing||Construct the counter of sensor signal using Arduino microcomputer board.|
|Class 4||Line tracer fabrication 2 －Construction of the control system using microcomputers||Construct and complete the line tracer.|
|Class 5||Internal combustion engines －Principal of operation, and instruction of tools for disassembly||Understand principal of operation for internal combustion engines. And learn the directions for use of tools for disassembly.|
|Class 6||Internal combustion engines － Disassembly of gasoｌine engine||Disassembly of gasoｌine engine|
|Class 7||Internal combustion engines －Analysis of engine system and components||Investigate the disassembled engine system and its components.|
|Class 8||Internal combustion engines －Assembly of gasoｌine engine||Assembly of disassembled gasoｌine engine|
|Class 9||Hydraulic machinery (hydraulic pump) －Principle of operation of hydraulic pump and hydraulic system||Learn about principle of operation of hydraulic pump and hydraulic system|
|Class 10||Hydraulic machinery (hydraulic pump) －Disassembly of hydraulic pump||Disassembly of hydraulic pump|
|Class 11||Hydraulic machinery (hydraulic pump) －Observation of structure and each component||Observe structure and each component of hydraulic pump|
|Class 12||Hydraulic machinery (hydraulic pump) －Assembly of the hydraulic pump and operation check||Assemble hydraulic pump and check operation|
|Class 13||Advanced technology on industrial application － Basic principle, structure, movement, the control method on the latest machine system.||Learn the advanced technology on industrial application.|
|Class 14||Advanced technology on industrial application － Basic principle, structure, movement, the control method on the latest machine system.||Learn the advanced technology on industrial application.|
|Class 15||Revision and submission of reports tasks, ｒeturn and maintenance of tools||Revise insufficient points in the submitted reports and tasks. Return used tools after maintenance.|
Not specified. (The lecture materials will be distributed at beginning of this course or can be downloaded on the web site of OCW.)
T. Mishiro, H. Takahashi, Denshi Kairo Nyumon Kouza, Denpa Shinbun-sha, ISBN-978-4885547461，(Japanese)
Students' knowledge of basic mechanical systems and their components will be assessed. To obtain skill, positive attitude is also required.
Practical skill and their results 40％ and Report 60％
Students must have successfully completed mechanical engineering literacy (GRD.R101，GRD.R102，GRD.R103, GRD.R104) or have equivalent knowledge. Because of the limit of the number of devices, a student of the mechanical engineering department can take this course with priority when the number of students is greater than the number of machine.