** acoustic mesh for air cavity
*Node,nset=AIR
201, 0.2699594, -0.05290701
202, 0.296727, -0.049605
203, 0.2977845, -0.04367401
204, 0.299059, -0.0365266
205, 0.2672479, -0.02907382
206, 0.29421, -0.0553866
207, 0.279243, -0.0749666
208, 0.287125, -0.066966
209, 0.29257, -0.0587286
210, 0.30098, -0.0201225
211, 0.301976, 0.
212, 0.2382352, 0.
213, 0.2379618, -0.0287547
214, 0.266238, -0.0832637
215, 0.253453, -0.0870777
216, 0.240134, -0.0880791
217, 0.186383, 0.
218, 0.226269, -0.0848594
219, 0.213787, -0.0782998
220, 0.201558, -0.07135411
221, 0.186383, -0.0645597
222, 0.2779461, -0.05131477
223, 0.2848475, -0.04915184
224, 0.2908484, -0.04804121
225, 0.2914148, -0.03098039
226, 0.2834301, -0.0298983
227, 0.2754909, -0.0293623
228, 0.2681189, -0.04125624
229, 0.2733724, -0.06395093
230, 0.2927306, 0.
231, 0.2840563, 0.
232, 0.2756929, 0.
233, 0.2672368, 0.
234, 0.2578675, 0.
235, 0.2482569, 0.
236, 0.2382639, -0.01476598
237, 0.2485186, -0.02890033
238, 0.2582257, -0.02880233
239, 0.237971, -0.04247333
240, 0.2386647, -0.05687109
241, 0.2395186, -0.07190055
242, 0.2265649, 0.
243, 0.2137942, 0.
244, 0.2003894, 0.
245, 0.186383, -0.01227678
246, 0.186383, -0.02445388
247, 0.186383, -0.03571038
248, 0.186383, -0.04530542
249, 0.186383, -0.05469438
250, 0.2763402, -0.04062
251, 0.283895, -0.04010932
252, 0.290962, -0.04076713
253, 0.2908571, -0.05264087
254, 0.2814097, -0.05953216
255, 0.2874211, -0.05501337
256, 0.292208, -0.0167295
257, 0.2838061, -0.01542597
258, 0.2755299, -0.01507607
259, 0.2669982, -0.01471376
260, 0.2579207, -0.01464963
261, 0.2483793, -0.01470385
262, 0.2589271, -0.04197757
263, 0.2488828, -0.04252848
264, 0.260412, -0.05505774
265, 0.2498818, -0.05646912
266, 0.2628773, -0.06839795
267, 0.2514987, -0.0711537
268, 0.2265336, -0.01425766
269, 0.2138604, -0.01357533
270, 0.200183, -0.01280665
271, 0.2262115, -0.02794749
272, 0.2134313, -0.02665322
273, 0.2000733, -0.02537994
274, 0.2259124, -0.04120363
275, 0.2133014, -0.03945866
276, 0.20005, -0.03739351
277, 0.2261656, -0.05493504
278, 0.2133558, -0.05211763
279, 0.2000868, -0.0487208
280, 0.2264179, -0.06922062
281, 0.2135538, -0.06496078
282, 0.2004322, -0.05996929
*Element, type=ACAX4
201, 201, 222, 250, 228
202, 222, 223, 251, 250
203, 223, 224, 252, 251
204, 224, 202, 203, 252
205, 228, 250, 227, 205
206, 250, 251, 226, 227
207, 251, 252, 225, 226
208, 252, 203, 204, 225
209, 206, 202, 224, 253
210, 224, 223, 255, 253
211, 223, 222, 254, 255
212, 222, 201, 229, 254
213, 229, 207, 208, 254
214, 254, 208, 209, 255
215, 255, 209, 206, 253
216, 204, 210, 256, 225
217, 210, 211, 230, 256
218, 225, 256, 257, 226
219, 256, 230, 231, 257
220, 226, 257, 258, 227
221, 257, 231, 232, 258
222, 227, 258, 259, 205
223, 258, 232, 233, 259
224, 205, 259, 260, 238
225, 259, 233, 234, 260
226, 238, 260, 261, 237
227, 260, 234, 235, 261
228, 237, 261, 236, 213
229, 261, 235, 212, 236
230, 205, 238, 262, 228
231, 238, 237, 263, 262
232, 237, 213, 239, 263
233, 228, 262, 264, 201
234, 262, 263, 265, 264
235, 263, 239, 240, 265
236, 201, 264, 266, 229
237, 264, 265, 267, 266
238, 265, 240, 241, 267
239, 229, 266, 214, 207
240, 266, 267, 215, 214
241, 267, 241, 216, 215
242, 212, 242, 268, 236
243, 242, 243, 269, 268
244, 243, 244, 270, 269
245, 244, 217, 245, 270
246, 236, 268, 271, 213
247, 268, 269, 272, 271
248, 269, 270, 273, 272
249, 270, 245, 246, 273
250, 213, 271, 274, 239
251, 271, 272, 275, 274
252, 272, 273, 276, 275
253, 273, 246, 247, 276
254, 239, 274, 277, 240
255, 274, 275, 278, 277
256, 275, 276, 279, 278
257, 276, 247, 248, 279
258, 240, 277, 280, 241
259, 277, 278, 281, 280
260, 278, 279, 282, 281
261, 279, 248, 249, 282
262, 241, 280, 218, 216
263, 280, 281, 219, 218
264, 281, 282, 220, 219
265, 282, 249, 221, 220
*Elset, elset=air, generate
201, 265, 1
*Nset, nset=air-rim
217, 221, 245, 246, 247, 248, 249
*Nset, nset=air-Sym
211, 212, 217, 230, 231, 232, 233, 234, 235, 242, 243, 244
*Elset, elset=liner3
239, 240, 241, 262, 263, 264, 265
*Elset, elset=liner2
204, 208, 213, 214, 215
*Elset, elset=liner1
209, 216, 217
*Surface, name=air-liner
liner3, S3
liner2, S2
liner1, S1
*Solid Section, elset=air, material=air
*Material, name=air
*Acoustic Medium
.426E6,
*Density
3.6,