Dear Jason,
I want to run a modal analysis of tower of NREL 5MW onland in ADAMS with FAST-generated files(*.adm, *.acf) and ADAMS2013_forBladedDLL.dll created by A2AD, but I’m really new to ADAMS, so I run ADAMS/view in the steps which is copied from Rannam.Chaaban in [url]Compile Adams2AD with ADAMS 2010]. Then I tried to run a normal vibration analysis in assembly operation point, but I got such warnings and errors:
WARNING: IP data specified for PART NRELOffshrBsline5MW_Onshore_ADAMS.Nacelle_P is not physically
meaningful, since it does not satisfy the requirement
that Ixx + Iyy must be greater than or equal to Izz.
The moments of inertia about the Center of Mass are:
Ixx = 9.9990E-04, Iyy = 9.9990E-04, Izz = 1.74149E+06
WARNING: IP data specified for PART NRELOffshrBsline5MW_Onshore_ADAMS.Generator_P is not physically
meaningful, since it does not satisfy the requirement
that Iyy + Izz must be greater than or equal to Ixx.
The moments of inertia about the Center of Mass are:
Ixx = 5.02550E+06, Iyy = 9.9990E-04, Izz = 9.9990E-04
WARNING: IP data specified for PART NRELOffshrBsline5MW_Onshore_ADAMS.Hub_P is not physically
meaningful, since it does not satisfy the requirement
that Iyy + Izz must be greater than or equal to Ixx.
The moments of inertia about the Center of Mass are:
Ixx = 1.15926E+05, Iyy = 9.9990E-04, Izz = 9.9990E-04
WARNING: A user VARSUB subroutine is required for VARIABLE NRELOffshrBsline5MW_Onshore_ADAMS.CalcOuts_V.
WARNING: A user SENSUB subroutine is required for SENSOR NRELOffshrBsline5MW_Onshore_ADAMS.AeroDyn_S.
WARNING: A user REQSUB subroutine is required for REQUEST NRELOffshrBsline5MW_Onshore_ADAMS.UserRequest_R.
WARNING: IP data specified for PART NRELOffshrBsline5MW_Onshore_ADAMS.Nacelle_P is not physically
meaningful, since it does not satisfy the requirement
that Ixx + Iyy must be greater than or equal to Izz.
The moments of inertia about the Center of Mass are:
Ixx = 9.9990E-04, Iyy = 9.9990E-04, Izz = 1.74149E+06
WARNING: IP data specified for PART NRELOffshrBsline5MW_Onshore_ADAMS.Generator_P is not physically
meaningful, since it does not satisfy the requirement
that Iyy + Izz must be greater than or equal to Ixx.
The moments of inertia about the Center of Mass are:
Ixx = 5.02550E+06, Iyy = 9.9990E-04, Izz = 9.9990E-04
WARNING: IP data specified for PART NRELOffshrBsline5MW_Onshore_ADAMS.Hub_P is not physically
meaningful, since it does not satisfy the requirement
that Iyy + Izz must be greater than or equal to Ixx.
The moments of inertia about the Center of Mass are:
Ixx = 1.15926E+05, Iyy = 9.9990E-04, Izz = 9.9990E-04
WARNING: A user VARSUB subroutine is required for VARIABLE NRELOffshrBsline5MW_Onshore_ADAMS.CalcOuts_V.
WARNING: A user SENSUB subroutine is required for SENSOR NRELOffshrBsline5MW_Onshore_ADAMS.AeroDyn_S.
WARNING: A user REQSUB subroutine is required for REQUEST NRELOffshrBsline5MW_Onshore_ADAMS.UserRequest_R.
ERROR: Subroutine VARSUB is not supplied for VARIABLE NRELOffshrBsline5MW_Onshore_ADAMS.YawPosDemand_V.
ERROR: Abnormal termination encountered in Adams/Solver.I have no idea about that. So, please help me.
Yingyu xu