Affiliation:
1. Department of Mechanical Design, Yuhan University, Bucheon 14780, Republic of Korea
2. Department of Mechanical & Automotive Engineering, Shinhan University, Uijeongbu 11644, Republic of Korea
Abstract
This paper examines the initial sizing theory of elastomeric bearings. In addition, the manufacturing process of the elastomeric bearing was analyzed to define the essential contents necessary to manufacture reliable elastomeric bearings. Mooney-Rivlin parameters were presented based on the test results to predict the characteristics of metal materials and rubber stacked. Mooney-Rivlin parameters were inputted to determine whether the structure was abnormal, by constructing a finite element model for the elastomeric bearing. A modeling technique was established to meet the structural rigidity and strength requirements of full elastomeric bearings, critical components of the helicopter main rotor system. In addition, the flight situation in which the maximum load of an actual helicopter equipped with an elastomeric bearing can be applied was selected, and linear structural analysis and nonlinear analysis were performed to confirm the behavior of the elastomeric bearing. As a result of performing linear static analysis, a negative margin was generated, but when nonlinear analysis was performed again, it was confirmed that there was a sufficient safety margin. It was shown that design reliability for the molding and manufacturing process of elastomeric bearings could be improved in terms of strength.
Subject
Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science
Reference32 articles.
1. Elastomeric stability of laminated elastomeric columns;Schapery;Int. J. Solids Struct.,1976
2. Finite element analysis of the stability of multilayer elastomeric bearings;Simo;Eng. Struct.,1984
3. Jeong, J.-G., Kim, Y.-S., Park, G.-R., Kim, D.-H., Lee, M.-G., and Kim, D.-K. (2003). An Experimental Study for Material Properties of Elastomer Bearing Using Next Genration Helicopter Rotor System, Korean Society for Noise and Vibration Engineering (KSNVE).
4. Analysis of specimen size effects in inclined compression test on laminated elastomeric bearings;Topkaya;Eng. Struct.,2004
5. Design of end-plate connections with elastomeric intermediate layer;Nasdala;J. Constr. Steel Res.,2007