KBC为0或者为1的两种状态

Error! Update failed for the Solution component in System Coupling.system completed with errors. Additional information:One or more elements have become highly distorted.Excessive distortion of elements is usually a symptom indicating the need for corrective action elsewhere.Try ramping the load instead of step applying the load(KBC,1)
出现这个问题，提示我 ，KBC为0或者为1的两种状态
在ansys workbench里应该怎么设KBC的值