The purpose of this study was to analyze the impact of blades with slots in a rotary compressor. The equations for contact forces were derived from Newton’s law. Updated moving Lagrangian descriptions with the hybrid technique and the Newark time integration method were used to determine the nodal displacement vectors. The finite element method was used to analyze the contact forces and the stresses of blades. The maximum blade contact force of 2.3 KN was larger than the maximum static force of 1 KN. The maximum blade impact Von Mises stress of 12.3 Mpa that occurred at the contact point was greater than the previous calculated static stress of 5.15 Mpa. Hence, the impact effect was significant. Experimental modal analysis was also used to determine the first and second natural frequencies of blades.
The Impact of Sliding Blades in a Rotary Compressor
Contributed by the Design Automation Committee for publication in the JOURNAL OF MECHANICAL DESIGN. Manuscript received April 1999. Associate Editor: H. Lankarani.
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Huang, Y. M., and Liaw, Y. (April 1, 1999). "The Impact of Sliding Blades in a Rotary Compressor ." ASME. J. Mech. Des. December 2001; 123(4): 583–589. https://doi.org/10.1115/1.1416150
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