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مجله بین المللی مخازن تحت فشار و لوله کشی
جزئیات رویداد
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  • design of pressure vessels using shape optimization: an integrated approach

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    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 712
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     previous papers related to the optimization of pressure vessels have considered the optimization of the nozzle independently from the dished end. this approach generates problems such as thickness variation from nozzle to dished end (coupling cylindrical region) and, as a consequence, it reduces the optimality of the final result which may also be influenced by the boundary conditions. thus, this work discusses shape optimization of axisymmetric pressure vessels considering an integrated approach in which the entire pressure vessel model is used in conjunction with a multi-objective function that aims to minimize the von-mises mechanical stress from nozzle to head. representative examples are examined and solutions obtained for the entire vessel considering temperature and pressure loading. it is noteworthy that different shapes from the usual ones are obtained. even though such different shapes may not be profitable considering present manufacturing processes, they may be competitive for future manufacturing technologies, and contribute to a better understanding of the actual influence of shape in the behavior of pressure vessels.

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