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ME30033: Mechanical vibrations & noise

[Page last updated: 15 October 2020]

Follow this link for further information on academic years Academic Year: 2020/1
Further information on owning departmentsOwning Department/School: Department of Mechanical Engineering
Further information on credits Credits: 6      [equivalent to 12 CATS credits]
Further information on notional study hours Notional Study Hours: 120
Further information on unit levels Level: Honours (FHEQ level 6)
Further information on teaching periods Period:
Semester 1
Further information on unit assessment Assessment Summary: EX 100%
Further information on unit assessment Assessment Detail:
  • Examination (EX 100%)
Further information on supplementary assessment Supplementary Assessment:
ME30033 Re-Assessment Examination (where allowed by programme regulations)
Further information on requisites Requisites:
Description: Aims:
To introduce quantitative aspects of noise control and to give an appreciation of some of the problems involved.
To acquaint the student with more advanced aspects of vibration.

Learning Outcomes:
After taking this unit the student should be able to:
* Calculate sound pressure level given relevant power and material data. Estimate the reduction in sound pressure level that could be achieved by the use of a barrier or enclosure.
* Apply harmonic balance, phase-plane and energy methods to non-linear systems.
* Solve Rayleigh's equation to obtain limit cycle solutions and also to solve Duffing's equation and explain jump phenomena.

Skills:
Problem solving; numeracy; working independently.

Content:
Behaviour of sound waves: the wave equation and Helmholtz equation, resonance, standing waves, addition of sounds.
Response of the ear. Noise exposure and codes of practice.
Noise isolation and absorption, barriers and enclosures.
Nonlinear vibrating systems and their analysis using harmonic balance, phase plane diagrams and energy methods.
Further information on programme availabilityProgramme availability:

ME30033 is Compulsory on the following programmes:

Department of Mechanical Engineering
  • UEME-AFB16 : BEng(Hons) Mechanical Engineering (Year 3)
  • UEME-AKB16 : BEng(Hons) Mechanical Engineering with Year long work placement (Year 4)
  • UEME-AFM16 : MEng(Hons) Mechanical Engineering (Year 3)
  • UEME-AKM16 : MEng(Hons) Mechanical Engineering with Year long work placement (Year 4)

ME30033 is Optional on the following programmes:

Department of Electronic & Electrical Engineering
  • UEXX-AFB02 : BEng(Hons) Integrated Mechanical and Electrical Engineering (Year 3)
  • UEXX-AKB02 : BEng(Hons) Integrated Mechanical and Electrical Engineering with Year long work placement (Year 4)
  • UEXX-AFM02 : MEng(Hons) Integrated Mechanical and Electrical Engineering (Year 3)
  • UEXX-AKM02 : MEng(Hons) Integrated Mechanical and Electrical Engineering with Year long work placement (Year 4)
Department of Mechanical Engineering
  • UEME-AFM04 : MEng(Hons) Aerospace Engineering (Year 4)
  • UEME-AKM04 : MEng(Hons) Aerospace Engineering with Year long work placement (Year 5)
  • UEME-AFM47 : MEng(Hons) Mechanical with Automotive Engineering (Year 4)
  • UEME-AKM47 : MEng(Hons) Mechanical with Automotive Engineering with Year long work placement (Year 5)

Notes: