The discussion revolves around whether the weight of members mounted on a shaft, such as gears and pulleys, should be included when calculating the critical speed of the shaft. The context includes theoretical considerations related to resonances and natural frequencies.
Participants generally agree that the weight of mounted members should be included in the calculations, but there is some ambiguity regarding the specific context and definitions of critical speed.
There is a lack of explicit definitions and context in the initial question, which may affect the clarity of the discussion. The relationship between critical speed and natural frequency is also not fully explored.
Ballena Joseph said:For the critical speed of the shaft, should I include the weight of the members mounted on the shaft (gears, pulleys, etc.) with the forces acting on it?
Critical speed of the shaft with given deflection and weight. From the formula: nc = (30/π)(ΣWy/ΣWy2)½anorlunda said:I wish you would be more explicit in your questions and give the context of what you are asking about.
Do you mean the critical speed as in resonances? Ihttps://en.wikipedia.org/wiki/Critical_speed
If so, then yes. Everything mounted on the shaft changes the natural frequency.