请问各位轮胎的内胎怎么去模拟

xhlaster

请问各位轮胎的内胎怎么去模拟？谢谢

Chelsea

个人收集的一个例程，不过由于我没做过这个方面的，所以没用过，据说里边有一定的错误，你可以参考一下基本思路吧

ANSYS做的轮胎模型

1. fini
   
2. /cle
   
3. /prep7
   
4. /title,wheel-3
   
5. 
   
6. !_____________________________________定义单元类型__________________________________________________
   
7. 
   
8. et,1,45 !用来给土层，轮辋以及基层来分网格
   
9. et,2,181
   
10. 
    
11. !____________________________________________________________________________________________________
    
12. 
    
13. !____________________________________定义轮胎材料参数_________________________________________________
    
14. !___________________________定义超弹材料，用9常数模型(单位为MPa)___________________
    
15. mp,ex,1,8000e6
    
16. mp,prxy,1,0.4
    
17. 
    
18. !____________________________定义正交弹性材料(单位为MPa)___________________________
    
19. mp,ex,2,1.03e10
    
20. mp,prxy,2,0.33
    
21. 
    
22. mp,ex,3,2.1e11
    
23. mp,prxy,3,0.3
    
24. 
    
25. save,material4,db
    
26. 
    
27. /prep7
    
28. !_______________________________________定义道路几何参数___________________________________________
    
29. areaload=0.557800e6 !单位mpa
    
30. arearadiu=0.1066 !单位m
    
31. top=0.5493
    
32. thick1=0.04+top !单位m
    
33. thick2=0.06
    
34. thick3=0.07
    
35. thick4=0.25
    
36. thick5=0.27
    
37. thick6=3.5
    
38. distanceofaxie=1.5*arearadiu !两轮中心距
    
39. 
    
40. rightb=1.50
    
41. leftb=-1.50
    
42. frontb=1.50
    
43. backb=-1.50
    
44. depthb=-(thick1+thick2+thick3+thick4+thick5+thick6)
    
45. !___________________________________________________________________________________________________
    
46. 
    
47. !______________________________________定义道路材料参数_____________________________________________
    
48. ex1=1200e6 !单位MPa
    
49. prxy1=0.35
    
50. dens1=2.509e-03 !单位kg/m3
    
51. 
    
52. ex2=1000e6
    
53. prxy2=0.35
    
54. dens2=2.447e-03
    
55. 
    
56. ex3=1000e6
    
57. prxy3=0.35
    
58. dens3=2.432e-03
    
59. 
    
60. ex4=1400e6
    
61. prxy4=0.2
    
62. dens4=2e-03
    
63. 
    
64. ex5=800e6
    
65. prxy5=0.2
    
66. dens5=1.800e-03
    
67. 
    
68. ex6=35e6
    
69. prxy6=0.4
    
70. dens6=1.900e-03
    
71. !___________________________________________________________________________________________________
    
72. 
    
73. !________________________________定义道路材料参数__________________________________________________
    
74. mp,ex,4, ex1 !定义道路第一层材料参数
    
75. mp,PRXY,4,prxy1
    
76. mp,dens,4,dens1
    
77. 
    
78. mp,ex,5, ex2
    
79. mp,PRXY,5,prxy2
    
80. mp,dens,5,dens2
    
81. 
    
82. mp,ex,6, ex3
    
83. mp,PRXY,6,prxy3
    
84. mp,dens,6,dens3
    
85. 
    
86. mp,ex,7, ex4
    
87. mp,PRXY,7,prxy4
    
88. mp,dens,7,dens4
    
89. 
    
90. mp,ex,8, ex5
    
91. mp,PRXY,8,prxy5
    
92. mp,dens,8,dens5
    
93. 
    
94. mp,ex,9, ex6
    
95. mp,PRXY,9,prxy6
    
96. mp,dens,9,dens6
    
97. !__________________________________________________________________________________________________
    
98. 
    
99. /prep7
    
100. !______________________________建立轮胎模型_________________________________________________________
     
101. k,1,0,0,0
     
102. k,2,0,0,0.03
     
103. k,3,0,0.01,0
     
104. k,4,0.297,0,0
     
105. k,5,0.297,0,0.2
     
106. k,6,0.297,0,-0.2
     
107. k,7,0.297,0,0.01
     
108. k,8,0.297,0,-0.01
     
109. k,9,2,0,0.01
     
110. k,10,0,0,-0.005
     
111. k,11,0,0,0.005
     
112. k,12,0.4028,0,0
     
113. k,13,0.5425,0,0
     
114. k,14,0.4028,0.01,0
     
115. circle,1,0.297,2,4,360,1
     
116. l,5,6
     
117. LGEN,2,4,,1,0.01
     
118. l,6,19
     
119. l,5,18
     
120. lsel,s,,,4,7,1
     
121. al,all
     
122. 
     
123. lsel,all
     
124. VDRAG,1,,,,,,1,2,3
     
125. vsel,s,,,1,3,1
     
126. vadd,all !4
     
127. 
     
128. torus,0.4028,0.1362,0.1422 !1
     
129. torus,0.4028,0.1422,0.1465 !2
     
130. 
     
131. vsbv,2,4,sepo,dele,keep !3,5
     
132. vdele,3
     
133. 
     
134. vsbv,1,4,sepo,dele,keep !2,3
     
135. vdele,2
     
136. 
     
137. wpoffs,,, 0.110836
     
138. WPSTYLE,,,,,,,,1
     
139. wpstyle,0.05,0.1,-1,1,0.003,0,0,,5
     
140. vsbw,4,speo,dele
     
141. vdele,2
     
142. 
     
143. wpoffs,,, -0.110836*2
     
144. vsbw,1,speo,dele !轮辋宽0.11085
     
145. vdele,4
     
146. 
     
147. l,11,10 !40
     
148. circle,11,0.297,2,7,360,1
     
149. lsel,s,,,41,43,2
     
150. lsel,a,,,56
     
151. al,all !11
     
152. lsel,all
     
153. vdrag,11,,,,,,40 !1
     
154. vsel,s,,,1,2
     
155. vadd,all !4
     
156. 
     
157. vsel,all
     
158. vglue,3,4,5 !1内胎,2外胎,6轮辋
     
159. 
     
160. !分网格
     
161. 
     
162. HPTCREATE,area,11,, coord,0,0,0.005
     
163. HPTCREATE,area,73,, coord,0,0,-0.005
     
164. vsel,s,,,6
     
165. type,1
     
166. mat,3
     
167. mshape,1,3D
     
168. mshkey,0
     
169. esize,0.04
     
170. !要粗化
     
171. vmesh,all
     
172. vsel,all !1336,1178
     
173. csys,0
     
174. 
     
175. !给外轮胎分网格
     
176. !HPTCREATE,area,21,, coord,0,0.5493,0
     
177. vsel,s,,,2
     
178. type,2
     
179. mat,1
     
180. mshape,1,3D !定义单元形状
     
181. mshkey,0
     
182. esize,0.02 !定义为自由网格
     
183. !可能要局部粗化
     
184. vmesh,all
     
185. vsel,all
     
186. 
     
187. !给轮胎束带层分网格
     
188. vsel,s,,,1
     
189. type,2
     
190. mat,2
     
191. mshape,1,3D
     
192. mshkey,0
     
193. esize,0.02
     
194. !可能要局部粗化
     
195. vmesh,all
     
196. 
     
197. !在内胎的内面上施加面荷载
     
198. !13,14,67-70
     
199. asel,s,,,13,14
     
200. asel,a,,,67,70,1
     
201. nsla,s
     
202. SF,all,pres,0.63e6 !压力单位为Pa
     
203. csys,0
     
204. save,finimodel,db
     
205. 
     
206. /prep7
     
207. !____________________________________________________定义路面_______________________________________________
     
208. 
     
209. block,rightb,leftb,-top,-thick1,frontb,backb !3
     
210. block,rightb,leftb,-thick1,-(thick1+thick2),frontb,backb !4
     
211. block,rightb,leftb,-(thick1+thick2),-(thick1+thick2+thick3),frontb,backb !5
     
212. block,rightb,leftb,-(thick1+thick2+thick3),-(thick1+thick2+thick3+thick4),frontb,backb!7
     
213. block,rightb,leftb,-(thick1+thick2+thick3+thick4),-(thick1+thick2+thick3+thick4+thick5),frontb,backb!8
     
214. block,rightb,leftb,-(thick1+thick2+thick3+thick4+thick5),depthb,frontb,backb!9
     
215. 
     
216. vglue,3,4,5,7,8,9 !3,10,11,12,13,14
     
217. 
     
218. vsel,s,,,3
     
219. type,1
     
220. mat,4
     
221. mshape,1,3D !定义单元形状
     
222. mshkey,0
     
223. esize,0.0.5 !定义为自由网格
     
224. vmesh,all
     
225. 
     
226. vsel,s,,,10
     
227. type,1
     
228. mat,5
     
229. mshape,1,3D !定义单元形状
     
230. mshkey,0
     
231. esize,0.15 !定义为自由网格
     
232. vmesh,all
     
233. 
     
234. vsel,s,,,11
     
235. type,1
     
236. mat,6
     
237. mshape,1,3D !定义单元形状
     
238. mshkey,0
     
239. esize,0.18 !定义为自由网
     
240. vmesh,all
     
241. 
     
242. vsel,s,,,12
     
243. type,1
     
244. mat,7
     
245. mshape,1,3D !定义单元形状
     
246. mshkey,0
     
247. esize,0.2 !定义为自由网格
     
248. vmesh,all
     
249. 
     
250. vsel,s,,,13
     
251. type,1
     
252. mat,8
     
253. mshape,1,3D !定义单元形状
     
254. mshkey,0
     
255. esize,0.3 !定义为自由网格
     
256. vmesh,all
     
257. 
     
258. vsel,s,,,14
     
259. type,1
     
260. mat,9
     
261. mshape,1,3D !定义单元形状
     
262. mshkey,0
     
263. esize,0.5 !定义为自由网格
     
264. vmesh,all
     
265. 
     
266. nsel,all
     
267. vsel,all
     
268. asel,all
     
269. 
     
270. fini
     
271. /solu
     
272. 
     
273. !__________________________________给道路加约束_______________________________________________
     
274. csys,0
     
275. nsel,all
     
276. nsel,r,loc,y,depthb
     
277. d,all,all,0
     
278. 
     
279. nsel,all
     
280. nsel,r,loc,x,rightb
     
281. nsel,a,loc,x,leftb
     
282. d,all,ux,0
     
283. 
     
284. nsel,all
     
285. nsel,r,loc,z,frontb
     
286. nsel,a,loc,z,backb
     
287. d,all,uz,0
     
288. 
     
289. save,pavemodel,db
     
290. 
     
291. fini
     
292. /prep7
     
293. 
     
294. !______________________________加接触对_________________________________________
     
295. r,1001
     
296. et,11,targe170
     
297. et,12,conta174
     
298. KEYOPT, 12,2,1 !定义使用罚函数
     
299. KEYOPT, 12,12,1 !定义为无限大,忽略滑动
     
300. KEYOPT, 12,7,3 !对下一个子步预测一个最小的时间增量
     
301. 
     
302. asel,s,,,22
     
303. asel,a,,,100,101
     
304. nsla,s
     
305. !nsel,r,loc,y,-0.4,-0.5493,0.0001
     
306. cm,_contact12,node
     
307. type,12
     
308. real,1001
     
309. esurf,,buttom
     
310. 
     
311. asel,s,,,9 !目标面，选择较为粗的网格
     
312. nsla,s
     
313. !nsel,r,loc,x,-0.8,0.8,0.0001
     
314. !nsel,r,loc,z,-0.7,0.7,0.0001
     
315. cm,_target12,node
     
316. type,11
     
317. real,1001
     
318. esurf,,top
     
319. save,contact,db
     
320. fini
     
321. 
     
322. fini
     
323. /solu
     
324. nsel,s,,,206
     
325. nsel,a,,,412
     
326. d,all,all,0
     
327. !d,all,uy,0
     
328. 
     
329. vsel,s,,,1,2
     
330. nsel,r,loc,x,0
     
331. d,all,ux,0
     
332. 
     
333. vsel,s,,,1,2
     
334. vsel,a,,,6
     
335. nsel,r,loc,z,0
     
336. d,all,uz,0
     
337. 
     
338. antype,static
     
339. 
     
340. asel,all
     
341. nsel,all
     
342. 
     
343. time,1
     
344. solve
     
345. 
     
346. 但是其接触部分的UY,UX方向位移明显错误(问题1)
     
347. 
     
348. 当我把材料一改为超弹材料
     
349. mp,ex,1,9000
     
350. mp,prxy,1,0.49
     
351. MPTEMP,,,,,,,,
     
352. MPTEMP,1,0
     
353. MPDATA,DENS,1,,1150
     
354. TB,mooney,1,1,9,MOON
     
355. TBTEMP,0
     
356. TBDATA,,0.770,,0.0671,,,0.0955
     
357. TBDATA,,,,,,,
     
358. MPTEMP,,,,,,,,
     
359. MPTEMP,1,0

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