Development and Demonstration of a Non-hydraulic Actuator for Application in Active and/or Semi-active Suspension Systems

Award Information
Agency: Department of Defense
Branch: Army
Contract: N/A
Agency Tracking Number: 20704
Amount: $49,593.00
Phase: Phase I
Program: SBIR
Awards Year: 1993
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Po Box 1971, Ames, IA, 50010
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Jerald M. Vogel
 (515) 232-5944
Business Contact
Phone: () -
Research Institution
A program for the preliminary design, prototype construction, and bench testing of a linear pneumatic suspension strut for application in non-hydraulic combat vehicle suspension systems is presented. The proposed suspension strut system components include an air spring, accumulator, and variable size orifices for the active control of strut dynamic performance. Strut natural frequency, damping ratio, and strut extension are independently adjustable parameters over a specified range of values through controlled sizing of the system airflow orifices and an air source. An optimal control study using a classical Calculus of Variations (Mayer formulation) approach is proposed to determine the feasibility of the strut in an active control system for a quarter vehicle model. System objective functions under consideration include various combinations of vehicle ride quality and controllability. The proposed effort includes a detailed design of the linear suspension strut and bench testing to verify strut natural frequency and damping ratio ranges.

* Information listed above is at the time of submission. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government