Wells on Engineering Design

تحلیل موتور توربوپراپ در شرایط on-design و off-design

در این رساله عملکرد یک موتور توربوپراپ که ملخ آن از نوع clark y 5868-r9 است در شرایط نقطه طرح (on- design) و خارج از نقطه طرح (off- design) مورد مطالعه قرار گرفته شده است. موتور توربوپراپ یکی از انواع موتور جت در تراست بالا و مصرف مخصوص سوخت پایین است که عدد ماخ پروازی آن هرگز از 8/. تجاوز نمی کند. دور موتور های توربوجت به حدی زیاداست که در صورت اتصال مستقیم به ملخ، سرعت نوک تیغه های ملخ به سرع...

Probabilistic design: The future of rock engineering

A brief background to the development of the rock engineering design process is given, showing that since the development of the science of mathematics, deterministic methods have been used to perform various calculations. The variability of rock properties and support characteristics have always been known. However, they were not explicitly used in design but compensated for by the use of a sa...

International Conference on Engineering Design

Engineering design consists of a variety of thought processes, but most of them can be classified into two types, analysis and synthesis. There is a need to build an advanced CAD system that can support not only analysis but also synthesis. However, traditionally, CAD technologies have paid little attention to synthesis. Our project team, “Modeling of Synthesis”, has focused on the synthesis th...

International Conference on Engineering Design

International Conference on Engineering Design

The plant design process is a set of complex and iterative decisional activities and analysis which involve heterogeneous “actors” with different competencies. The first design results are achieved after time-consuming analysis of thermodynamic and acoustic plant characteristics. Then, the functional solution (the plant layout and the ducts geometry) has to be verified from the structural viewp...