Vibro Acoustics Consortium

Just another College of Engineering site

Fall Meeting of the Vibro-Acoustics Consortium

November 2, 2017


University of Minnesota

Mechanical Engineering Building (Room ME 1130)

111 Church St. S.E.

Minneapolis, MN 55455


8:00 a.m. Coffee and Pastries

8:30 a.m. Morning Session

  • Introductions
  • Introduction to the Center for Compact and Efficient Fluid Power

Tutorial Review of ISO-15086 – Testing and Characterization of Hydraulic Silencers

Flow Noise in Exhaust Systems

  • Continuing Work on Muffler Insertion Loss Flow Rig
  • Acoustic FEM of Perforated Tubes Including the Effect of Flow
  • Measurements of Flow Noise Generation

Using Simulation to Solve NVH Problems   

  • Diesel Particulate Filter and Catalyst Transmission Loss Validation Study
  • Benchmark Examples for Acoustic FEM
  • FEM Simulation and Scale Modeling of Acoustic Scattering
  • Simulation of Panel Transmission Loss using Structural / Acoustic FEM

12:00 p.m. Lunch

1:00 p.m. Afternoon Session

Tutorial Review of ISO-10846 – Determination of Isolator Properties

Source Identification

  • Panel Contribution Analysis Applied to an Interior Acoustic Problem
  • Source Identification of a Single Cylinder Internal Combustion Engine
  • Microphone Array Design for Patch Contribution Analysis

Sound Absorbing Materials

  • Continuing Research on Sound Absorptive Fabrics
  • Development of Excel Spreadsheet for Sound Absorptive Treatments


  • Continuing Work on Scale Modeling of HVAC Ducts
  • Development of an Isolator Test Rig
  • Characterization of a Small Reverberation Room using Acoustic FE
  • Review of the Mic-W for use with PDA

5:00 p.m. Adjourn