[转帖]ANSYS动力学分析的几个入门例子

simon21

三角平台受一地震谱激励,求应力分布和支反力
基本过程：
1、建模
2、求模态解
3、求谱解
4、扩展模态
5、模态合并
6、观察结果

1. /PREP7 !建模
   
2. ET,1,BEAM189
   
3. ET,2,SHELL93
   
4. R,1,0.01, , , , , ,
   
5. MP,EX,1,210e9
   
6. MP,PRXY,1,0.3
   
7. MP,DENS,1,7850
   
8. SECTYPE, 1, BEAM, RECT, secA, 0
   
9. SECOFFSET, CENT
   
10. SECDATA,0.005,0.008,0,0,0,0,0,0,0,0
    
11. K, ,-0.5,,,
    
12. K, ,0.5,,,
    
13. K, ,,,1,
    
14. K, ,,1,1,
    
15. K, ,-0.5,1,,
    
16. K, ,0.5,1,,
    
17. K, ,,,0.5,
    
18. A,4,5,6
    
19. LSTR, 1, 5
    
20. LSTR, 3, 4
    
21. LSTR, 2, 6
    
22. LSEL,S,LINE,,4,6
    
23. LATT,1,1,1, , 7, ,1
    
24. LSEL, , , ,ALL
    
25. LESIZE,ALL, , ,10, , , , ,1
    
26. LMESH,4,6
    
27. TYPE, 2
    
28. MSHAPE,0,2D
    
29. MSHKEY,1
    
30. AMESH,1
    
31. FINISH
    
32. 
    
33. /SOL !取前十阶模态
    
34. ANTYPE,2
    
35. MODOPT,LANB,10
    
36. KSEL,S,KP,,1,3
    
37. DK,ALL, , , ,0,ALL, , , , , ,
    
38. SOLVE
    
39. FINISH
    
40. 
    
41. /SOL !谱分析
    
42. ANTYPE,8
    
43. SPOPT,SPRS,10,1
    
44. SVTYP,3
    
45. SED,0,1,0, !给出激励方向
    
46. FREQ,0.25,1.34,6.73,14.6,28.9,0,0,0,0 !激励谱
    
47. SV,0,0.00073,0.00016,0.00034,0.00034,0.00052,
    
48. SOLVE
    
49. FINISH
    
50. 
    
51. /SOL !扩展模态
    
52. ANTYPE,2
    
53. EXPASS,1
    
54. MXPAND,10,0,0,1,0.001,
    
55. SOLVE
    
56. FINISH
    
57. 
    
58. /SOL !模态合并
    
59. ANTYPE,8
    
60. SRSS,0.001,DISP
    
61. SOLVE
    
62. 
    
63. /POST1 !观察结果
    
64. SET,LIST
    
65. /INPUT,,mcom
    
66. PRRSOL,F
    
67. FINISH

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来源:aoxue

[ 本帖最后由 yejet 于 2006-9-17 10:16 编辑 ]

coolxh

如题:<BR><BR>汽车荷载为公路-级的重车双后轴:<BR>  每根轴重为140kN,<BR>  轴间距1.4m<BR>  设计车速为80km/h<BR><BR>谢谢!