Specifies the number of modes to use from the modal analysis. A conservative rule of thumb is to include modes that cover 1.5 times the maximum frequency in the PSD excitation table.

When set to Yes, this property enables you to not include modes for the mode combination as determined by the threshold value you set by the Mode Significance Level property (that automatically displays when Yes is selected). The default value of 0 means all modes are selected (same as setting Exclude Insignificant Modes to No) while a value of 1 means that no modes are selected. The higher you set the threshold, the fewer the modes selected for mode combination.