Table of Contents
Executive summary
Chapter 1: Sources of noise and how VMs deal with the noise problem
- Overview of materials to manage noise and vibration
- An alternative to sheets of damping material
Chapter 2: Managing noise through covering the vehicle underbody
- Premium German VMs are leading the way.....
Chapter 3: Acoustics inside the car - the role of the headliner
- Alternative headliner materials
Chapter 4: Headliner manufacture
- Probond - a case study
- Headliner manufacture - the process in action
- Just-in-time assembly and sequenced deliveries
Chapter 5: Technical innovation in headliners
Chapter 6: Technical Innovation in Acoustics
- ERTAC - a major research programme with practical results
Chapter 7: Customer perceptions and expectations of vehicle acoustics with case studies
Company Profiles
- AKsys GmbH
- Borgers
- Carcoustics
- CF Gomma
- Faurecia
- Findlay Industries
- Freudenberg
- Grupo Antolin
- HP Chemie-Pelzer
- Hutchinson-Paulstra
- IAC
- Ideal Automotive
- Johnson Controls
- Lydall
- Magna
- Mecaplast
- Voestalpine
- Polynorm
- Rieter
- Rochling Automotive
- San Valeriano
- Stankiewicz
- StokvisTapes
- Tramico
- Trelleborg
- Treves
- Woco
- Woodbridge
Table Of Figures
- Figure 1: Applications of acoustic material in the interior
- Figure 2: The underbody panels for the BMW M3
- Figure 3: Headliner structure using Findlay' s Probond system
- Figure 4: Headliner sandwiches enter the ovens at Polytec Poland
- Figure 5: Finished headliners on a storage rack at Polytec Poland
- Figure 6: Ford Flex Underbody
- Figure 7: Changing consumer NVH expectations
- Figure 8: Audi Q5 Acoustical Profile and comparison with competitors
- Figure 9: Modular longitudinal component system: identity of bulkhead
insulation in the Audi Q5 and Audi A4 despite differences in geometry
- Figure 10: Overview of the insulation/dampening parts in the Audi A4 and
Audi Q5
- Figure 11: Audi Q5 underside parts
- Figure 12: Eos vs. Competitor Interior Noise Level
- Figure 13: BMW 7-series body shell cavity with foam in bulkhead
- Figure 14: BMW 7-series covered underbody
- Figure 15: BMW 7-series climate control noise, New vs. Old
- Figure 16: Door lining deformation as a result of the excitation by the
integrated loudspeaker before and after optimisation
- Figure 17: Mercedes C-class bulkhead insulation material
- Figure 18: Mercedes S-class in wind tunnel
- Figure 19: Mercedes S-class driver seat improvements
- Figure 20: Mercedes S-class driver seat comparison; new, old and
competition
- Figure 21: Mercedes E-class acoustic parts
- Figure 22: Mercedes-Benz CL - showing “invisible” wipers when
not in use and “stem” on mirror
- Figure 23: Mercedes-Benz CL undergoing window and related acoustic testing
- Figure 24: Mercedes-Benz CL - dummies with anatomically correct ear
canals for perceived noise testing
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