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Machine Design-II Exam Guidelines by Rakesh Singh is a document available to read on EtoBox.
What is Machine Design-II Exam Guidelines about?
1) A cylindrical vessel has a circular cover plate held in place by 30 bolts. A pressure of 1.5MPa acts on the cover plate, which has a diameter of 450mm. 2) The initial tightening stress in the bolts must be calculated to maintain a safety factor of 1.6 after 8000hrs of creep relaxation at 500°C. The secondary creep rate is given. 3) Using the creep rate equation, the time until the bolts need to be re-tightened to prevent leakage around the plate can be determined.
- Author
- Rakesh Singh
- Language
- EN