Settings for Response Spectrum Analysis

- March 31, 2020 at 2:02 pm
  
  pierj88
  Subscriber
  
  Hi all again.
  
  I'm writing about the settings for a Response Spectrum Analysis (in combination with modal superposition SRSS), with Ansys v18.
  
  The study I want to do is a shock analysis, with a known SRS (acceleration-frequency). Before the RS anlysis, I do a modal analsyis (undamped).
  
  The settings, unknown for me, are:
  
  - Missing mass effect
  
  -Rigid response effect
  
  -Suppressed.
  
  As now, I have all set to "OFF". What change if I change this settings?
  
  Thanks in advance
  
  Piergiorgio
- March 31, 2020 at 7:08 pm
  Wenlong
  Ansys Employee
  Hi Piergiorgio,
  
  Here are the explanations of "missing mass effect" and "Rigid response effect" (Reference: https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v201/en/wb_sim/ds_load_rs_base.html?q=missing%20mass%20effect):
  
  Regards,
  
  Wenlong
  
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