Bladed doesn't find good initial conditions (e.g. blade deflections)
Category: Structural dynamics
Problem
Bladed can sometimes stuggle to find the correct initial operating conditions (e.g. blade deflections, pitch angle), especially with some multi-part blade models. This can often be most clearly seen in Steady Calculations or Campbell Diagram initial conditions.
Example plot below:
Solution
Set the "initial conditions relaxation factor" to a value below 1 e.g. 0.4 in the "Additional Items" screen. (Available in 4.8.0.86 and later versions)
The initial deflections should then be reasonable as shown below:
Keywords Blade deflections initial conditions