P11221: Noise Reduction for Internal Combustion Engine

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Project Summary	Project Information
Background: Lawnmower Engine The auto industry is currently increasing the focus on the reduction of noise emitted from an internal combustion engine. For consumer vehicles it is largely an issue of comfort and convenience but for performance competitions with noise restrictions and requirements, such as the SAE Formula competition, it can be an issue of meeting competition requirements while limiting performance degradation. The focus of this project is to develop an active, passive, or hybrid mechanical and/or electrical noise attenuating system with minimal engine performance degradation. Project Readiness Package 1-page Project Summary Details: The original scope of the project was to create a noise dissipation system for the Formula SAE car. The logistics of coordination and implementation was determined too eager, so a Briggs and Stratton lawnmower engine will be used. The project explored absorption type mufflers for the lawnmower engine and a resonator demonstration module. Both of these systems were presented at the ImagineRIT fair May 7, 2011. The ANC system was investigated by another Senior Design Team (P11227). Status: Project is closed and considered a success. Follow on projects are encouraged to familiarize themselves with important project reference materials including the Technical Paper and Test Reports as well as the "ANC Packet", all of which can be found below. Further questions can be directed to Christopher Morehouse at csm9555@rit.edu through the fall quarter of 2011.	Project Name Noise Reduction for Internal Combustion Engine Project Number P11221 Track Vehicle Systems and Technologies Start Term 2010-1 End Term 2010-3 Faculty Guide Ed Hanzlik Faculty Consultants Ed Hanzlik Dr. Alan Nye Graduate Teaching Assistant Mr. Jagdish Tandon Primary Customer Dr. Alan Nye Team Members Chris Morehouse Julie Maier Ted Zachwieja Caroline Bills

Main Documents	Project Sections	Senior Design I	Senior Design II
Important Documents: Preliminary WBS Project Breakdown Customer Needs & Engineering Specifications The Plan Risk Assessment Concept Screening Matrices Preliminary Bill of Materials Team Documents: Team Members Overview Team Values and Norms Further Material: Reference materials Photo Gallery	Design Options: ANC Absorption Resonator Theory Resonator Demo Sound Data: Formula SAE Car Briggs & Stratton Frequency Generator ImagineRIT: Overview Posters Pictures	System Design Review: Pre-Review Info Packet Presentation Notes from Review Action Items List Detailed Design Review: Preliminary Agenda Pre-Review Info Packet Presentation Notes from Review Action Items List Managerial Design Review: Notes Action Items List (11.19.10) Revised Action Items List (2.17.11)	Solid Models & Manufacturing: Absorption Muffler Models Absorption Muffler Manuf. Plan Resonator Demo Models Testing: Test Procedures Test Data & Results Test Reports ASME Competition: Presentation Judging Criteria Technical Conference Publication: Technical Paper Outline Technical Paper Poster Publication: Project Poster Week 10 Project Review: Project Review Presentation