为什么我用ansys命令流建立beam3模型，定义了实常数，去得面积为

ME!

1. finish
   
2. /clear
   
3. /prep7
   
4. 
   
5. RO = 7850                                                        
   
6. PEX = 2.06E11                                    
   
7. MP,EX,1,PEX   !ex: 弹性模量
   
8. MP,DENS,1,RO  !密度
   
9. MP,PRXY,1,0.3
   
10. ET,1,beam3,,,
    
11. 
    
12. 
    
13. ET,32,mass21        !mass ux uy uz
    
14. keyopt,32,3,4
    
15. R,32,0.0248,0.0248,0.0248
    
16. ET,33,mass21
    
17. keyopt,33,3,4
    
18. R,33,0.0577,0.0577,0.0577
    
19. ET,34,mass21
    
20. keyopt,34,3,4
    
21. R,34,0.0577,0.0577,0.0577,
    
22. ET,38,mass21
    
23. keyopt,38,3,4
    
24. R,38,0.134,0.134,0.134
    
25. ET,313,mass21
    
26. keyopt,313,3,4
    
27. R,313,0.0577,0.0577,0.0577
    
28. ET,314,mass21
    
29. keyopt,314,3,4
    
30. R,314,0.0577,0.0577,0.0577
    
31. ET,315,mass21
    
32. keyopt,315,3,4
    
33. R,315,0.02051,0.02051,0.02051
    
34. ET,316,mass21
    
35. keyopt,316,3,4
    
36. R,316,0.06647,0.06647,0.06647
    
37. 
    
38. ET,22,COMBIN14                                          
    
39. keyopt,22,2,0
    
40. R,22,164e6
    
41. ET,23,COMBIN14                                             
    
42. keyopt,23,2,0
    
43. R,23,164e6
    
44. 
    
45. *DIM,DIAM,ARRAY,16  !定义直径数组
    
46. DIAM(1) = 15E-3
    
47. DIAM(2) = 16E-3
    
48. DIAM(3) = 17E-3
    
49. DIAM(4) = 17E-3
    
50. DIAM(5) = 20.5E-3
    
51. DIAM(6) = 29E-3
    
52. DIAM(7) = 21.7E-3
    
53. DIAM(8) = 21E-3
    
54. DIAM(9) = 20E-3
    
55. DIAM(10) = 17E-3
    
56. DIAM(11) = 17E-3
    
57. DIAM(12) = 20.5E-3
    
58. DIAM(13) = 17E-3
    
59. DIAM(14) = 17E-3
    
60. DIAM(15) = 16E-3
    
61. DIAM(16) = 12.5E-3
    
62. 
    
63. *DIM,AERA,ARRAY,16  !定义横截面面积数组
    
64. AERA(1)  =   0.000126449104
    
65. AERA(2)  =  0.000150796447
    
66. AERA(3)  =  0.000176714587
    
67. AERA(4)  = 0.000176714587
    
68. AERA(5)  =  0.0002797980
    
69. AERA(6)  =  0.000610254372
    
70. AERA(7)  =  0.0003195707
    
71. AERA (8) =   0.0002960951
    
72. AERA(9)  =   0.0002638938
    
73. AERA(10)  =   0.00017671459
    
74. AERA(11)  =   0.00017671459
    
75. AERA(12)  = 0.00027979808
    
76. AERA(13) =  0.00017671459
    
77. AERA(14) =  0.00017671459
    
78. AERA (15) =  0.00015079645
    
79. AERA(16)  = 0.00007252981
    
80. 
    
81. *DIM,IZZ,ARRAY,16  !定义截面惯性矩数组
    
82. IZZ(1) = 0.022839869465450E-7
    
83. IZZ(2) =   0.030159289474462E-7
    
84. IZZ(3) =  0.038987655704901E-7
    
85. IZZ(4) =  0.038987655704901E-7
    
86. IZZ(5) =   0.084682642404833E-7
    
87. IZZ(6) =   0.084682642404833E-7
    
88. IZZ(7) = 0.106834468521627E-7
    
89. IZZ(8) =   0.093455018336514E-7
    
90. IZZ(9) =  0.076529197041447E-7
    
91. IZZ(10) =  0.038987655704901E-7
    
92. IZZ(11) =   0.038987655704901E-7
    
93. IZZ(12) =   0.084682642404833E-7
    
94. IZZ(13) =  0.038987655704901E-7
    
95. IZZ(14) =0.038987655704901E-7
    
96. IZZ(15) = 0.030159289474462E-7
    
97. IZZ(16) =   0.009973605607059E-7
    
98. 
    
99. *DO,I,1,16  
    
100. R,I,AERA(I),IZZ(I),DIAM(I)
     
101. *ENDDO   
     
102. 
     
103. 
     
104. N,1,0
     
105. N,2,0.0164
     
106. N,3,0.029
     
107. N,4,0.039
     
108. N,5,0.049
     
109. N,6,0.0555
     
110. N,7,0.0585
     
111. N,8,0.065
     
112. N,26,0.09
     
113. N,9,0.1122
     
114. N,10,0.1172
     
115. N,11,0.1222
     
116. N,12,0.1272
     
117. N,13,0.1377
     
118. N,14,0.1477
     
119. N,15,0.1577
     
120. N,16,0.164
     
121. N,17,0.187
     
122. 
     
123. TYPE,1                                             
     
124. *DO,I,1,16  
     
125.   E,I,I+1
     
126. R,I
     
127.   *ENDDO      
     
128. 
     
129. TYPE,32
     
130. real,32
     
131. e,2
     
132. 
     
133. TYPE,33
     
134. real,33
     
135. e,3
     
136. 
     
137. TYPE,34
     
138. real,34
     
139. e,4
     
140. 
     
141. TYPE,38
     
142. real,38
     
143. e,26
     
144. 
     
145. TYPE,313
     
146. real,313
     
147. e,13
     
148. 
     
149. TYPE,314
     
150. real,314
     
151. e,14
     
152. 
     
153. TYPE,315
     
154. real,315
     
155. e,15
     
156. 
     
157. TYPE,316
     
158. real,316
     
159. e,16
     
160. 
     
161. BRG =-0.010                                                      
     
162. N,18,0.039,BRG
     
163. N,20,0.049,BRG
     
164. N,22,0.1477,BRG
     
165. N,24,0.1577,BRG
     
166. 
     
167. 
     
168. TYPE,22                                                    ! CREATE BEARING
     
169. REAL,22
     
170. E,18,4
     
171. E,20,5
     
172. 
     
173. 
     
174. TYPE,23                                                    ! CREATE BEARING
     
175. REAL,23
     
176. E,22,14
     
177. E,24,15
     
178. finish
     
179. 
     
180. 
     
181. /SOLU
     
182. D,18,ALL
     
183. D,20,ALL
     
184. D,22,ALL
     
185. D,24,ALL
     
186. 
     
187. 
     
188. 
     
189. 
     
190. /SOLU
     
191. ANTYPE,MODAL                                    
     
192. MODOPT,lanb,20,,,ON
     
193. MXPAND,20
     
194. SOLVE
     
195. finish
     

复制代码

TYPE,1                                             
*DO,I,1,16  
  E,I,I+1
R,I
  *ENDDO      

是不是红色部分字体有问题啊，不能这么定义吗？老是弹出警告


*** WARNING ***                         CP =     324.547   TIME= 21:12:49
Zero thickness element 1 may result in wrong thermal or bending stress.
  Check real constant table 1.                                          


*** ERROR ***                           CP =     324.547   TIME= 21:12:49
Element 1 has a zero area.  Check real constant table 1.               


*** WARNING ***                         CP =     324.703   TIME= 21:12:53
Zero moment of inertia for element 1.  Check real constant table 1.