Pneumatic Active Suspension Design for Heavy Vehicle Seats and Operator Ride Comfort

Details

• Personal Author:
  Amirouche F ; Mayton A ; Valero B
• Description:
  Handling of heavy vehicles such as tractors, trucks and buses require a large roll stiffness which causes large high accelerations at the seat level during impacts. To provide comfort and minimize the energy transfer from the chassis and the seat a pneumatic active seat suspension is proposed. An active seat suspension design and control algorithm under development at the University of Illinois at Chicago, UIC, is being developed and tested. Preliminary results are presented in this paper. The design of a passive suspension typically consists of optimizing the value of two parameters: the stiffness and the damping of the suspension. The general dynamic performance of the suspension is limited to the conditions under which these parameters were obtained. A change in the input conditions might lead to poor suspension and an amplification of the vibration transmitted to the body. The focus of this paper is a robust, semi-active suspension system with a variable controlled damping and using the body response an index measure to minimize the acceleration at the interface of the seat and operator. A summary of existing suspensions, such as MR and ER fluids, and spring loaded and dual valve shock absorbent will be discussed to highlight the need of a semi-active pneumatic suspension system design. [Description provided by NIOSH]
• Subjects:
  Engineering Ergonomics Occupational Health Safety Vibration
• Keywords:
  Control-technology Engineering-controls Equipment-design Vibration-control Vibration-disease Vibration-effects Vibration-exposure
• Series:
  Mining Publications
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  Illinois ; OSHA Region 3 ; OSHA Region 5 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRL - Pittsburgh Research Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  38-39
• NIOSHTIC Number:
  nn:20030963
• Citation:
  Proceedings of the first American conference on human vibration, June 5-7, 2006, Morgantown, West Virginia. Dong R, Krajnak K, Wirth O, Wu J, eds. Morgantown: WV: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2006-140, 2006 Jun; :38-39
• Editor(s):
  Dong R; Krajnak K; Wirth O; Wu J
• Federal Fiscal Year:
  2006
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:56c39132320c27504a08d150c8152703462aa7a5d388592ee73d6ed06ad9cceeb0acd431732c4ef9b43de718838b5a69cd13888afa59ffb884ab6c45879d4cd5
• Download URL:
  https://stacks.cdc.gov/view/cdc/226653/cdc_226653_DS1.pdf
• File Type:
  [PDF - 233.49 KB ]