Hello,
I am doing a shock analysis introducing as input a response spectre of a sismic event, function of frequency and acceleratio Se(T) [g].
The idealization of a chemical reactor with the heat exchanger welded above it, is a series of beam of different section.
I have to insert a series of mass idealization, for the mass located in the axis of the beam there aren't problem.
But I wont to intruduce a mass at a "X" distance from beam axis and I don't know how to join the mass to the beams.
I tried by rigid link or weighted link but a message says that the indipendent side element is has several point collinear.
Anyone know how to resolve this problem please?