Optimal Design Of The Teeth-locked Quick Open-closure Device In High Pressure Vessel

The teeth-locked quick open-closure device is a structure whichcould be opened easily through moving some distance or rotating somedegrees by external forces. The device is widely used for kinds ofpressure vessels. In this dissertation, it is used in the high pressuresintering furnace of powder metallurgy. The shape and loading of thedevice are complex. Our country has not published correspondingnational standards. At present the design method is conservative. Strengthcheck and optimal design were carried out by analysis and numericalmethods in this dissertation, and elastoplastic analysis of the optimizeddevice had been done because of the plastic distortion due to the cyclicloading.Firstly, the mechanical model should be built. Then, analyticalcalculation and strength check were carried out with the numericalanalysis software MATLAB referring to Japanese standard JISB8284-2003pressure vessel with rapid block content, and the optimalspace had been found.Secondly, the FEA model had been built. Then, the numericalcalculation and strength check were carried out with the software ANSYSaccording to JB4732-1995Steel Pressure Vessel——Design by analysis,and the optimal space should be found.Then, according to the results of the analytic calculation andnumerical calculation, the size optimization had been done with thesoftware MATLAB and optimal results had been obtained. Meanwhile, the size optimization had been done with the software ANSYS and theoptimal results had been also obtained. Compared two optimal results, theconclusion had been gained.Finally, the elastoplastic analysis had been done by optimized deviceand the ultimate load had been figured out. Then, the shakedownassessment also had been conducted.