RecurDyn/FFlex (Full Flex) lets you combine the power of Finite Element Analysis (FEA) and Multibody Dynamics (MBD) to increase the accuracy of your simulations. With RecurDyn/FFlex, you can define a flexible body by importing an FEA mesh. RecurDyn/FFlex provides the most benefit in situations where flexible bodies are in contact with other bodies, or where the effects of nonlinear deformation on system performance need to be assessed.
RecurDyn/RFlex (Reduced Flex) gives you fast simulations with flexible bodies in your multibody systems. RecurDyn/RFlex represents flexible bodies using modal information that is output from Finite Element Analysis (FEA) software. RecurDyn/RFlex also includes options to export body loads to FEA and to export modal participation factors.