Hello!
I have made a calculation of the number of equivalent full pressure cycles and my result is far more than 500 cycles.
What is the procedure then? Should I take the number of equivalent full pressure cycles and compare it to FAT 100 S-N curve? Or it is more complicated than that?
Do we...
Hello!
I have a question: What is the purpose of the moment for assembly conditions? To calculate stresses and thickness of a flange we are using moments for operating conditions.
Moment for assembly conditions just adds confusion during calculation and is urealistic huge compared to operation...
Hello!
I am trying to figure out how to perform a structural analysis of the rectangular draft tube to a Francis turbine subjected to internal pressure.
I would like to know if there are any rules or codes or theory books that gives an introduction to this problem.
There are two issues:
-...
Hello.
I try to understand the following equation: Kv = Q / sqrt(delta p), whre "Kv" is in m^3/s, "Q" is in m^3/s and "delta p" is in MPa (or bar).
If we divide flow (m^3/s) by the square root of pressure difference (MPa), how do we get the value of Kv to be in m^3/s?
Please, give me an...
Hello.
I am interested in design of the ball and butterfly valves that used in hydropower industry. Such valves installed in front of the turbines in hydropower plants. Which standards and/or literature describes the following: Stress analysis of the valve housing, counterweight design and...
Hello.
I am interested in design of the ball and butterfly valves that used in hydropower industry. Such valves installed in front of the turbines in hydropower plants. Which standards and/or literature describes the following: Stress analysis of the valve housing, counterweight design and...
