This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Analysis of Tuning Cables for Reduction of Fluidborne Noise in Automotive Power Steering Hydraulic Lines
Annotation ability available
Sector:
Language:
English
Abstract
A distributed parameter mathematical model of a complete power steering hydraulic transmission circuit has been developed and implemented on a personal computer to analyze the effect of tuning cables on the attenuation of pressure waves generated by the pump. Tuning cables, flexible tubes positioned coaxially inside a length of hose placed at a convenient location in the circuit, reduce fluidborne noise primarily by destructive interference and viscous damping. The model uses a transfer matrix approach that includes two-dimensional viscous flow and three-dimensional fluid-structure interaction. It can be used for sizing and positioning tuning cable devices in power steering as well as other hydraulic systems prior to verification testing of the circuit.
Recommended Content
Technical Paper | Nonlinear CAE Meshfree Simulation of a Truck-Based Radiator Hose/Fitting/Clamp Assembly Process |
Ground Vehicle Standard | Qualified Hoses for Marine Applications |
Ground Vehicle Standard | Commercial Literature Specifications - Off-Road Work Machines |
Citation
Hastings, M. and Chen, C., "Analysis of Tuning Cables for Reduction of Fluidborne Noise in Automotive Power Steering Hydraulic Lines," SAE Technical Paper 931295, 1993, https://doi.org/10.4271/931295.Also In
References
- Klees G. T. “Attenuation Device,” United States Patent No. 3,323,305 June 1967
- D'Souza A. F. Oldenburger R. “Dynamic Response of Fluid Lines,” Journal of Basic Engineering Transactions of the ASME 86 September 1964 589 598
- Washio S Konishi T. “Research on Wave Phenomena in Hydraulic Lines (11th Report, Harmonic Wave in Coaxial Double Pipes),” Bulletin of JSME 22 April 1985 1049 1475
- Brown F. T. Tentarelli S. C. “Analysis of Noise and Vibration in Complex Tubing System with Fluid-Wall Interactions,” Proceedings of the 43rd National Conference on Fluid Power 1980 139 149
- Chen C. C. “A Theoretical Analysis of Noise Reduction in Automotive Power Steering Transmission Lines,” M. S. Thesis The Ohio State University 1992