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[Other] AQWA Error "STRUCTURAL MASS MATRIX DIAGONAL(S) ZERO FOR STRUCTURE#1"

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April 10, 2020, 20:43	AQWA Error "STRUCTURAL MASS MATRIX DIAGONAL(S) ZERO FOR STRUCTURE#1"	#1
MoniqueKrp New Member Monique Ellen Bruner Join Date: Apr 2020 Posts: 1 Rep Power: 0	Hi guys! I have a problem while making simulations on Ansys Aqwa. I must get the RAOs of a small sphere (20 mm radius, moving vertically only) and the following error always appears when I try to solve the system: STRUCTURAL MASS MATRIX DIAGONAL(S) ZERO FOR STRUCTURE#1 Can someone help me?

July 18, 2020, 22:12	Structure mass matrix error.	#2
The flash New Member Syed Join Date: Apr 2020 Posts: 4 Rep Power: 6	Hey, You gotta add point mass for any floating Body. Make sure that the point mass is located on cob.

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