静态分析求解时出现两处错误？请各位高手帮忙看看！
（1）Error: An internal solution magnitude limit was exceeded. Please check your Environment for inappropriate load values or insufficient supports.Also check that your mesh has more than 1 element in at least 2 directions if solid brick elements are present.Please see the Troubleshooting section of the Help System for more information.（2）Warning: Solver pivot warnings have been encountered during the solution.This is usually a result of an ill conditioned matrix possibly due to unreasonable material properties, an under constrained model, or contact related issues.Check results carefully. Project>Model>Static Structural>Solution 7/6/2012 5:07:54 PM
检查各接触面边界条件，确认没有多余的free自由度
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