Mechanical Engineering Science

Mechanical Analysis for Two-layered Ultrahigh Pressure Apparatus with Interlayer Pressure

ZHAOMengjun, ZHUPengchen, LIUZan, KANGChao

Abstract


To improve the bearing pressure capacity of ultrahigh pressure apparatus, the internal autofrettaged cylinder with interlayer pressure (ACCIP) is introduced, and the analytical model for the ACCIP structure and its derivation are presented as well. Calculation showed that the ACCIP method enhance bearing pressure of the apparatus obviously; optimization results revealed that under the working pressure pw=1.07σs and different radius ratios, the ACCIP method can keep the apparatus in deformed-elastically state; And when the pw=1.07σs, the minimum radius ratio was approximate 3.29, in this case, no yielding happened. The above results demonstrate that the ACCIP method is a promising technique to improve the bearing pressure of ultrahigh pressure apparatus, and the analytical model for the ACCIP method is also reasonable. In addition, the minimum radius ratio ro/ri under randomly specified workload can be Fig.d out by the analytical model proposed in this work.

Keywords


mechanical analysis; ultrahigh pressure; interlayer pressure; analytical mode

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References


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DOI: https://doi.org/10.33142/mes.v3i1.4330

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