Teaching Labs

The Institute now has four teaching laboratories, one computer room and one machine shop. In addition, the Northern Micro-Electro-Mechanical System (MEMS) Center of Nation Science Council (NSC) is also locate inhouse.

The teaching laboratories consist of the following: 

Name	Photo	負責技士	聯絡電話
教學實驗室
Eletronics Lab		徐發義	+886-2-3366-5612
Dynamics Lab		林佑思	+886-2-3366-5610
Fluid Mechanics Lab		林佑思	+886-2-3366-5610
Mechanics of Materials Lab		廖家文	+886-2-3366-5609
其他設備
Computer Room		陳建兆	+886-2-3366-5615
Machine Workshop		廖家文	+886-2-3366-5609

Mechanics of Materials Lab

SHIMADZU Universal Testing Machine

Shimadzu Universal Testing Machine with torsion fixtures

Pulsed Ultrasonic Instruments

Photoelasticity

Course Description

Uniaxial Tensile Test

    To run tensile tests on two different types of material - Aluminum and Steel bars and obtain the significant mechanical properties from the test results.

Equipment:

• Two different types of material - Aluminum and Steel bars
• Shimadzu Universal Testing Machine Autograph AG-10TA
• Strain gages
• Strain Indicator P-3500 

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Torsion Test

    To familiarize the shear stress-strain relationship of metals in both elastic and plastic ranges.

Equipment:

• Shimadzu Universal Testing Machine Autograph AG-10TA with torsion fixtures 

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Pulsed Ultrasonic Experiments

    The purpose of this experiment is familiarize the student with fundamental of elastic wave propagation and its applications on the characterization of material properties, and flaw structures, … etc ..

Equipment:

• PANAMETRICS Pulser / Receiver 5072 PR
• NI VirtualBench and Personal Computer
• longitudinal and shear wave transducers ( 2.5 MHz )
• Longitudinal and shear wave couplants.

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Acoustoelastic Effect in Solids

    The purpose of this experiment is to utilize acoustoelastic effect to measure the third order elastic constants of an isotropic material and to realize its application to stress measurement.

Equipment:

• Shimadzu Universal Testing Machine Autograph AG-10TA

• Ultrasonic pulse generator and receiver
• Longitudinal and shear wave transducers ( 5 MHz )
• Oscilloscope and time interval counter

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Stress Analysis by Photoelasticity

    To demonstrate the unique ability of photoelasticity to visually depict the stress distributions throughout a loaded structure. Further, this method will be used to get quantitative data for these loaded structures.

Equipment:

• Transmitted Light Polariscope
• Camera

Dynamics Lab

Modal testing

• Objectives：

  To measure the natural frequencies and vibration modes of a structural system and to understand the vibration concept.

• Equipment：

  The experimental system includes an aluminum rod suspended by a pair of soft springs, an accelerometer, an instrumented hammer with a force transducer installed, spectrum analyzer, power supply and amplifier, and a PC based data acquisition system.

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Gyroscopic Motion of a Rigid Body

• Objectives：

  To study the gyroscopic effects on the motions of a rigid body.

• Equipment：

  1. large steel sphere with an attached rod supported by a semispherical seat.

  2. compressor to levitate the sphere and to reduce the friction.

  3. Stroboscope, stopwatch, ruler.

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Calibration of Displacement Sensors

• Objectives：

  To study the principles of LVDT, Fotonic and Eddy Current sensors and perform the calibration, data acquisition and analysis.

• Equipment：

  LVDT

  Eddy current sensor

  Fotonic sensor

  Proximeter

  Dial gauge

  Platform

  Data acquisition system

  Power supplier

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Vibrations of Coupled Oscillators

• Objectives：

  To study the free and forced motions of two spring-coupled masses.

• Equipment：

  A linear air track with requisite springs, gliders, air blower, and driving motor

  Power supply

  A stop watch

  An electro-magnet

Research Fields　

　　Since 1994, the Institute has been gradually diverting the direction from the defense-related research to an interdisciplinary and state-of-the-art research oriented towards world-wide trend and local needs. The new research direction embraces areas in mechanics, nanotechnology, biomechanics, biomedical research, information, and mechatronics. The Institute has further identified three major fields in connection with "Mechanics in Nano-Revolution", namely, 

Waves and N/MEMS

　　Waves and N/MEMS with focus on the analyses and applications of the elastic waves and electromagnetic waves and their interactions.

Nano-Biomechanics

　　Nano-Biomechanics with focus on the examination of characteristics and interactions of micro- or nano-scale biological structures by mechanics approach.

Multi-Scale Mechanical Systems

　　Multi-Scale Mechanical Systems with focus on the exploration of the analytic, experimental, and computational aspects of the systems.

Fluid Mechanics Lab

Drag on a circular cylinder

• A Wind-tunnel ( speed-variable )
• One cylinder with a wall-mounted pressure tap
• A Prandtl-tube ( Pitot-static tube)
• A manometer

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Thermal anemometry

• A Hot-wire anemometer
• A Hot-wire calibrator (TSI, model 1125) with a compressed air source
• An oscilloscope
• A multimeter
• An U-tube manometer
• A diaphragm manometer

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Air jet flows ( circular and planar )

• An axisymmetric vertical jet ( Nozzle diameter = 5 mm )
• An two-dimensional vertical jet ( Exit area = 1 mm x 60 mm )
• A pitot tube for field velocity measurements
• A force plate assembly

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Dynamic Similarity

Objectives:
After completion of this experiment and perform the analyses required, you should acquire the following skills:

1. Understand the basics of pipe flow, pressure distribution along a pipe, and velocity profile at the pipe exit;
2. Measure pressure via water manometer and pitot static probe (to calculate velocity);
3. Perform analysis using the Moody diagram;
4. Fundamentals of the Buckingham Pi Theorem and dimensionless analysis;
5. Uncertainly analysis.

 
Experimental apparatus:

1. A blower fan
2. Pipes
3. A pitot-static probe
4. A water manometer
5. Laptop computer (bring your own)