用ansys模拟时出现这样的warning，不知何解...希望得到高手指点
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warning:
the calculated reference force convergence value=2.78392293E-09 is less than 1E-2 a threshold zero, a value of 1E-2 or specified MINREF is used. Check results carefully.
the calculated reference force convergence value=2.78392293E-09 is less than 1E-2 a threshold zero, a value of 1E-2 or specified MINREF is used. Check results carefully.
feifei 
