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. c( }* t8 i2 Q这是我从ANSYS的算法验证文件转换过来的，同样适用于CosmosWorks。在计算实际的工程问题以前应该先计算一个类似的验证文件，比较计算结果以验证自己算法的正确性。也可以作为有限元例题使用。
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标题 Static Hertz Contact Problem
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# j4 M1 V! B1 q) i/ e: g! ]( tOverview
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( @9 e, M) f# o. U) F) j$ O| Reference: | S. Timoshenko, J. N. Goodier, Theory of Elasticity, 3rd Edition, McGraw-Hill Book Co., Inc., New York, NY, 1970, pg. 409-413, article 140. | | Analysis Type(s): | Static Analysis |
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5 d: `, q. f' @$ O3 ?9 qA sphere of radius r is pressed against a rigid flat plane. Determine the contact radius, a, for a given load F.# A/ E) R* {: M7 D
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Figure 63.1 Static Hertz Problem
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4 Z2 L& a: P+ H* I7 Q% N, |+ q* m| Material Properties | | E = 1000 N/mm2 | | υ = 0.3 |
| | Geometric Properties | | r = 8 mm | | Loading | | F = (30 x 2 π) N |
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Analysis Assumptions and Modeling NotesAn axisymmetric model is used. A node is placed near the expected radius of contact. Midside nodes are removed along the surface where contact is likely to occur. The model is comprised of both PLANE82 and PLANE2 for verification purposes, but could be solved using either element type alone. The model is solved using 3-D node-to-node contact elements (CONTA178)./ `. M' t3 B" p. f& A$ b. X
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| a, mm | Target | ANSYS | Ratio | | CONTA178 | 1.010 | 1.011 | 1.001 |
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# n6 s- v7 L( ^# _6 @[ 本帖最后由 tigerdak 于 2007-11-6 12:05 编辑 ] |
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发表于 2007-11-6 02:04:09