频响分析计算报错
我在设置好频响分析步骤之后，提交计算总是报错： Patran 2010 64-Bit has found nodes for which both SPCs and dependent MPC relationships exist. Nastran will not accept such a specification.The affected nodes have been placed in a group by the name of "BDF_WARNING_MPC_SPC_CONFL".You may choose to proceed with your specified course of action provided that there are no other problems, or you may choose to bypass the job submission, if requested, and modify the database.If you choose to proceed, the SPCs for the affected nodes will be omitted, thus creating an analysis deck that Nastran will accept, but which may not conform to your modeling specifications.请问各位有人遇到过这个问题吗，在group组里查看这个BDF_WARNING_MPC_SPC_CONFL组时，显示的是全部模型都有问题。。。
^^^ USER FATAL MESSAGE 9050 (SEKRRS)
^^^ RUN TERMINATED DUE TO EXCESSIVE PIVOT RATIOS IN MATRIX KLL.
^^^ USER INFORMATION: ACCURATE RIGID BODY MODES ARE REQUIRED FOR AUTO-SUPORT ANDRESIDUAL VECTORS.
^^^ USER ACTION: SET F1<=0. ON THE EIGR BULK DATA ENTRY OR V1<=0. ON THE
EIGRL ENTRY.IF IT IS DESIRED TO EXCLUDE RIGID BODY OR LOW FREQUENCY MODES FROM DYNAMIC SOLUTION THEN SPECIFY
PARAM,LFREQ OR MODESELECT CASE CONTROL COMMAND.
这是直接在nastran里面提交计算后，f06文件里面报的错误，有没有高手能看懂啊？
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