Optimal Design for the Rear-Glass Joint of an Automobile for Squeak and Rattle Noise Reduction

Ever since vehicle noise, vibration, and harshness (NVH) reduction technology made dramatic improvements, vehicle interior noises represented by Squeak and Rattle (S/R) becomes an ever more important factor to improve the emotional quality of vehicles. Generally, people detect S/R noises on automotive interior parts, brake system, suspension, Body in White (BIW), etc. Among them, the rear-glass joint is a major source for vehicle interior noise, and can cause S/R noises under a variety of environmental and driving conditions. This study uses, two approaches, experimental and numerical approaches, to define the cause of S/R noise at the rear-glass section. Based on these two approaches, this study confirms that S/R noises generate through the contact between bottom side of molding and BIW. The sealant penetration length, panel molding distance, and sealant width are the parameters affecting noise generation. In addition, this study created an optimal design with Design of Experiments (DOE) of the rear-glass joint. The design maximized the sealant penetration length, which is a parameter that majorly affects noise. The optimal design comprises of two steps: sealant injections shape optimization and rear-glass joint parameter optimization. Each step is carried out with FEA and validated by sealant penetration experiments. Through these optimizations, this study obtained an optimum combination of design parameters and significantly reduced the noise generated by rear-glass section.

• Record URL:
  • https://doi.org/10.1007/s12239-018-0083-3
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/12299138
• Supplemental Notes:
  • Copyright © 2018, The Korean Society of Automotive Engineers and Springer-Verlag Berlin Heidelberg.
• Authors:
  • Baek, Keon Hee
  • Choi, Su Bin
  • Hong, Hee Rok
  • Jeong, Nak Tak
  • Moon, Hyeong Uk
  • Lee, Eun Seong
  • Kim, Hyung Min
  • Choi, Sung Uk
  • Suh, Myung Won
• Publication Date: 2018-10

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: pp 859-868
• Serial:
  • International Journal of Automotive Technology
  • Volume: 19
  • Issue Number: 5
  • Publisher: Korean Society of Automotive Engineers
  • ISSN: 1229-9138
  • EISSN: 1976-3832
  • Serial URL: http://link.springer.com/journal/12239

Subject/Index Terms

• TRT Terms: Joints; Noise sources; Optimization; Sealing compounds; Vehicle design; Vehicle rear end; Window glass; Windows (Vehicles)
• Subject Areas: Design; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01683710
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 19 2018 9:43AM