ENGME251-20B (HAM)

Dynamics and Vibration

15 Points

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Division of Health Engineering Computing & Science
School of Engineering

Staff

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Convenor(s)

Lecturer(s)

Administrator(s)

Placement/WIL Coordinator(s)

Tutor(s)

Student Representative(s)

Lab Technician(s)

Librarian(s)

: debby.dada@waikato.ac.nz

You can contact staff by:

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Paper Description

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Following topics are included in this paper: concepts of forces, moments, equilibrium, free body diagrams, Newton’s laws, work, energy, impulse, momentum of a rigid body and fundamental vibration systems including single, two and multi-degree of freedom systems. Forced vibrations is also covered.

All lectures will be on line. Students are given the opportunity to either join the tutorials/labs or work at home. Coming to the uni or working at home is however, the student’s decision.

Due to COVID-19, there are ongoing changes to the timetable. Moodle Announcements will be used to inform of any timetable changes.

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Paper Structure

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This paper is taught with on-line lectures on dynamics and vibration.

Tutorials are scheduled for those who want to return to face-to-face learning. These tutorials will be recorded and will be uploaded onto Moodle for those who opt for working at home.

Solidworks and Matlab are two major software for the lab sessions. Students should have access to these software (links will be available). Similar to the tutorials, labs are scheduled for the students attending face-to-face session. Videos will be available on Moodle.

Note: due to the impact of COVID-19, the lectures content will be delivered through flipped learning and blended teaching (as per the UoW VC directive). This means that students need to read the lecture notes provided and view the recording available prior to any official lecture/tutorial/review.

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Learning Outcomes

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Students who successfully complete the course should be able to:

  • To solve single and two DOF free vibration and forced vibration problems
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  • Solve problems involving relative velocity and acceleration of rigid bodies
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  • Calculate the acceleration (translational/rotational) or the actions (forces/moments) in a moving rigid body using Newton's laws
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  • Solve problems involving motion of a rigid body along a path using the work-energy equations.
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  • Solve problems involving the motion of rigid body using impulse-momentum equations.
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  • Solve free vibration and forced vibration problem.
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  • Explain the stability of a vibration system.
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  • Analyze 2 degree of freedom free vibration system.
    Linked to the following assessments:
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Assessment

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The assessment of this paper comprises one assignment, three lab reports and four tests. There is NO final examination.

All tests are compulsory. Students must submit an "Extension of Deadline/Special Consideration form" if they cannot attend these tests. Otherwise, these tests will be considered as "Failing to complete" and results in an IC grade.

The tests are open book and all questions should be attempted.

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Assessment Components

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The internal assessment/exam ratio (as stated in the University Calendar) is 100:0. There is no final exam. The final exam makes up 0% of the overall mark.

The internal assessment/exam ratio (as stated in the University Calendar) is 100:0 or 0:0, whichever is more favourable for the student. The final exam makes up either 0% or 0% of the overall mark.

Component DescriptionDue Date TimePercentage of overall markSubmission MethodCompulsory
1. Lab report - Four bar mechanism
14 Aug 2020
5:00 PM
10
  • Online: Submit through Moodle
2. Lab report - Slider-crank mechanism
11 Sep 2020
5:00 PM
10
  • Online: Submit through Moodle
3. Lab report - Spring-mass system
5 Oct 2020
5:00 PM
10
  • Online: Submit through Moodle
4. Test 1 (the test starts at 14:00)
6 Aug 2020
3:00 PM
15
  • Hand-in: In Tutorial
  • Online: Submit through Moodle
5. Test 2 (the test starts at 14:00)
20 Aug 2020
3:00 PM
15
  • Hand-in: In Tutorial
  • Online: Submit through Moodle
6. Assignment
14 Sep 2020
5:00 PM
10
  • Online: Submit through Moodle
7. Test 3 (The test starts at 14:00 a.m.)
1 Oct 2020
3:00 PM
15
  • Hand-in: In Tutorial
  • Online: Submit through Moodle
8. Test 4 (The test starts at 14:00)
15 Oct 2020
3:00 PM
15
  • Hand-in: In Tutorial
  • Online: Submit through Moodle
Assessment Total:     100    
Failing to complete a compulsory assessment component of a paper will result in an IC grade
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Required and Recommended Readings

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Required Readings

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Mechanics for Engineers: Dynamics, R. C. Hibbeler and Kai Beng Yap, 13th Edition (S.I. version) Pearson.

Mechanical Vibrations, Singiresu (S.I. version) Pearson.
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Recommended Readings

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Mechanical Vibrations : Theory and Applications by S. G. Kelly, Cengage.

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Online Support

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This paper has a Moodle page (http://elearn.waikato.ac.nz) where you will be able to access PPT’s, lecture notes and assessment materials.

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Workload

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Contact Hours:

Lectures 24;

Tutorials 8;

Laboratories: 3 labs x 8 hours per lab = 24.

Test 4x 1 hour per test = 4

Sub-total 60

Non-contact hours:

Preparation for, and work after laboratory sessions, 8;

Revision after lectures and preparation for tutorials 40;

assignment: 8 ;

Preparation for tests :40;

Sub-total 96

Overall total 156.

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Linkages to Other Papers

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Prerequisite(s)

Prerequisites: ENGEN110 or ENGG110

Corequisite(s)

Equivalent(s)

Restriction(s)

Restricted papers: ENME351

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