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16-Pearl
Feb 17, 2023 8:19 AM UTC
Solved

Creo Simulate contact analysis

Hello, I'm trying to create and simulate contact analysis on mounted parts there are 6 main frames, 12 bolts and 4 pins with around 20 contacts defined. 

simulation doesn't converge at all. everything i've tried didn't get me anywhere always contact area is dancing around and residual factor too. 

I'm sure that I have defined all the contacts in all the places. All the frames are modelled as 1 part and all the bolts has slight interpenetration to create pretension. But it doesnt converge at all. 

Is there any good practice how to create contact simulation with many contacts? \

 

 

Things that i've tried: create pretension, delete pretension, fine mesh, rough mesh, change parameter called sim_contact_tolerance_factor increase/decreace, change convergence settings, finite friction, infinite friction, 0 friction, 

Example of convergence:

 

 

 

 Load factor : 1.00000e-01
 Residual norm tolerance: 1.00000e-09

------------------------------------------
Iteration Residual norm Area
------------------------------------------
 1 1.0000e+00 7.0615e+04 Fri Feb 17, 2023 06:51:17
 2 1.0000e+00 4.5168e+05 Fri Feb 17, 2023 06:51:56
 3 1.0063e-03 3.4800e+05 Fri Feb 17, 2023 06:52:35
 4 1.3636e-06 2.9005e+05 Fri Feb 17, 2023 06:53:14
 5 1.5219e-07 2.6358e+05 Fri Feb 17, 2023 06:53:53
 6 7.2918e-07 2.1785e+05 Fri Feb 17, 2023 06:54:33
 7 3.9976e-08 1.8730e+05 Fri Feb 17, 2023 06:55:12
 8 2.2661e-08 1.7018e+05 Fri Feb 17, 2023 06:55:50
 9 1.0919e-08 1.7080e+05 Fri Feb 17, 2023 06:56:29
 10 5.4540e-09 1.6276e+05 Fri Feb 17, 2023 06:57:08
 11 3.2743e-09 1.5247e+05 Fri Feb 17, 2023 06:57:46
 12 4.0881e-09 1.4957e+05 Fri Feb 17, 2023 06:58:24
 13 6.8582e-05 1.8358e+05 Fri Feb 17, 2023 06:59:05
 14 1.0554e-08 1.7415e+05 Fri Feb 17, 2023 06:59:44
 15 4.1022e-07 1.5177e+05 Fri Feb 17, 2023 07:00:23
Loosening gap stiffness to improve convergence
 16 2.3832e-07 1.4155e+05 Fri Feb 17, 2023 07:01:02
 17 1.7176e-08 2.9714e+05 Fri Feb 17, 2023 07:01:41
 18 2.0151e-07 2.6400e+05 Fri Feb 17, 2023 07:02:20
 19 6.1776e-09 2.4227e+05 Fri Feb 17, 2023 07:02:59
 20 1.1068e-09 2.5557e+05 Fri Feb 17, 2023 07:03:41
 21 1.1850e-09 2.3187e+05 Fri Feb 17, 2023 07:04:23
 22 7.6003e-10 2.4082e+05 Fri Feb 17, 2023 07:05:05
Adjusted gap stiffness to prevent interpenetration
 23 2.7779e-08 2.2493e+05 Fri Feb 17, 2023 07:05:47
 24 3.6278e-09 2.1695e+05 Fri Feb 17, 2023 07:06:29
 25 3.0372e-09 2.0945e+05 Fri Feb 17, 2023 07:07:10
 26 9.6627e-10 2.1422e+05 Fri Feb 17, 2023 07:07:52
Adjusted gap stiffness to prevent interpenetration
 27 1.5556e-07 2.0513e+05 Fri Feb 17, 2023 07:08:34
 28 1.7384e-08 2.0158e+05 Fri Feb 17, 2023 07:09:16
 29 5.1700e-09 1.8797e+05 Fri Feb 17, 2023 07:09:58
 30 3.3820e-09 1.9962e+05 Fri Feb 17, 2023 07:10:37
 31 5.6008e-09 2.1553e+05 Fri Feb 17, 2023 07:11:20
 32 9.8902e-08 2.0151e+05 Fri Feb 17, 2023 07:12:02
 33 1.2410e-08 2.1347e+05 Fri Feb 17, 2023 07:12:44
 34 2.0315e-08 1.9927e+05 Fri Feb 17, 2023 07:13:29
 35 2.4502e-08 1.9847e+05 Fri Feb 17, 2023 07:14:14
 36 2.1911e-08 2.0351e+05 Fri Feb 17, 2023 07:14:56
 37 1.3892e-08 1.8761e+05 Fri Feb 17, 2023 07:15:38
 38 1.7767e-08 1.8462e+05 Fri Feb 17, 2023 07:16:23
 39 3.3594e-08 1.9113e+05 Fri Feb 17, 2023 07:17:05
 40 2.0919e-08 1.8388e+05 Fri Feb 17, 2023 07:17:48
 41 1.7216e-08 1.7961e+05 Fri Feb 17, 2023 07:18:34
 42 1.9691e-08 1.8318e+05 Fri Feb 17, 2023 07:19:15
 43 1.4191e-08 2.2937e+05 Fri Feb 17, 2023 07:19:57
 44 1.9441e-08 2.1013e+05 Fri Feb 17, 2023 07:20:38
 45 4.6010e-08 2.0278e+05 Fri Feb 17, 2023 07:21:20
 46 6.4672e-08 2.1654e+05 Fri Feb 17, 2023 07:22:01
 47 2.6309e-08 1.9879e+05 Fri Feb 17, 2023 07:22:42
 48 2.5303e-08 1.9170e+05 Fri Feb 17, 2023 07:23:23
 49 1.7855e-08 1.8747e+05 Fri Feb 17, 2023 07:24:04
 50 2.2876e-08 1.8581e+05 Fri Feb 17, 2023 07:24:47
 51 1.7156e-08 2.1835e+05 Fri Feb 17, 2023 07:25:28
 52 1.9992e-08 1.9296e+05 Fri Feb 17, 2023 07:26:10
 53 1.5495e-08 1.8153e+05 Fri Feb 17, 2023 07:26:52
 54 1.7576e-08 1.8018e+05 Fri Feb 17, 2023 07:27:34
 55 2.1264e-08 2.0016e+05 Fri Feb 17, 2023 07:28:16
 56 5.7598e-08 2.1021e+05 Fri Feb 17, 2023 07:28:58
 57 5.1185e-08 2.0055e+05 Fri Feb 17, 2023 07:29:40
 58 2.7393e-08 1.9653e+05 Fri Feb 17, 2023 07:30:24
 59 1.8009e-08 2.2472e+05 Fri Feb 17, 2023 07:31:04
 60 2.1383e-08 1.9777e+05 Fri Feb 17, 2023 07:31:47
 61 1.5448e-08 2.7099e+05 Fri Feb 17, 2023 07:32:28
 62 2.2027e-08 2.1360e+05 Fri Feb 17, 2023 07:33:09
 63 1.8144e-08 1.9227e+05 Fri Feb 17, 2023 07:33:51
 64 2.0051e-08 1.8533e+05 Fri Feb 17, 2023 07:34:33
 65 1.5847e-08 1.8219e+05 Fri Feb 17, 2023 07:35:14
 66 1.7437e-08 1.8076e+05 Fri Feb 17, 2023 07:35:56
 67 1.5126e-08 1.7785e+05 Fri Feb 17, 2023 07:36:37
 68 2.0546e-08 1.7657e+05 Fri Feb 17, 2023 07:37:18
 69 1.6498e-08 1.7678e+05 Fri Feb 17, 2023 07:38:00
 70 1.8724e-08 1.7677e+05 Fri Feb 17, 2023 07:38:41
 71 1.1573e-04 2.1970e+05 Fri Feb 17, 2023 07:39:24
 72 4.8163e-08 2.4947e+05 Fri Feb 17, 2023 07:40:06
 73 2.3002e-08 2.3116e+05 Fri Feb 17, 2023 07:40:47
 74 2.4053e-08 2.1288e+05 Fri Feb 17, 2023 07:41:30
 75 2.0014e-08 1.9955e+05 Fri Feb 17, 2023 07:42:12
 76 1.3195e-06 2.0574e+05 Fri Feb 17, 2023 07:42:53
 77 3.2539e-08 2.0102e+05 Fri Feb 17, 2023 07:43:34
Loosening gap stiffness to improve convergence
 78 2.3099e-07 1.9458e+05 Fri Feb 17, 2023 07:44:15
 79 1.5378e-08 3.8771e+05 Fri Feb 17, 2023 07:44:57
 80 4.6065e-10 3.4422e+05 Fri Feb 17, 2023 07:45:38
Adjusted gap stiffness to prevent interpenetration
 81 1.0244e-05 3.2347e+05 Fri Feb 17, 2023 07:46:19
 82 1.5491e-08 3.1698e+05 Fri Feb 17, 2023 07:47:00
 83 3.6565e-09 2.9462e+05 Fri Feb 17, 2023 07:47:41
 84 6.8412e-06 2.9824e+05 Fri Feb 17, 2023 07:48:24
 85 1.1817e-08 2.9346e+05 Fri Feb 17, 2023 07:49:05
 86 2.5043e-09 2.8267e+05 Fri Feb 17, 2023 07:49:47
 87 6.8605e-06 3.0087e+05 Fri Feb 17, 2023 07:50:28
 88 1.1866e-08 2.9516e+05 Fri Feb 17, 2023 07:51:11
 89 1.0546e-09 2.7080e+05 Fri Feb 17, 2023 07:51:53
 90 3.8126e-10 2.6411e+05 Fri Feb 17, 2023 07:52:35
Adjusted gap stiffness to prevent interpenetration
 91 1.0846e-05 2.8424e+05 Fri Feb 17, 2023 07:53:17
 92 3.3304e-08 3.0010e+05 Fri Feb 17, 2023 07:53:59
 93 2.4314e-08 2.7980e+05 Fri Feb 17, 2023 07:54:43
 94 6.8635e-06 2.8386e+05 Fri Feb 17, 2023 07:55:27
 95 5.9190e-08 2.8131e+05 Fri Feb 17, 2023 07:56:12
 96 9.8588e-08 2.6766e+05 Fri Feb 17, 2023 07:56:54
 97 8.0458e-06 2.8834e+05 Fri Feb 17, 2023 07:57:36
 98 8.1294e-08 2.8023e+05 Fri Feb 17, 2023 07:58:19
 99 5.6426e-08 2.7309e+05 Fri Feb 17, 2023 07:59:00
 100 7.0291e-06 2.8284e+05 Fri Feb 17, 2023 07:59:41
 101 7.1255e-08 2.7621e+05 Fri Feb 17, 2023 08:00:22
 102 8.1001e-08 2.6611e+05 Fri Feb 17, 2023 08:01:07
 103 1.6458e-05 2.8637e+05 Fri Feb 17, 2023 08:01:48
 104 8.8166e-08 2.8570e+05 Fri Feb 17, 2023 08:02:30
 105 4.7127e-08 2.7471e+05 Fri Feb 17, 2023 08:03:11
 106 8.0635e-08 2.6558e+05 Fri Feb 17, 2023 08:03:52
 107 8.3996e-08 2.6504e+05 Fri Feb 17, 2023 08:04:33
 108 1.0161e-07 2.6241e+05 Fri Feb 17, 2023 08:05:16
 109 9.0707e-08 2.8402e+05 Fri Feb 17, 2023 08:05:58
 110 5.8664e-08 2.5479e+05 Fri Feb 17, 2023 08:06:39
 111 6.3605e-08 2.7803e+05 Fri Feb 17, 2023 08:07:19
 112 5.7070e-08 2.6285e+05 Fri Feb 17, 2023 08:08:00
 113 6.7747e-08 2.6181e+05 Fri Feb 17, 2023 08:08:41
 114 9.3685e-08 2.5727e+05 Fri Feb 17, 2023 08:09:23
 115 9.8192e-08 2.5920e+05 Fri Feb 17, 2023 08:10:04
 116 6.1752e-08 2.5765e+05 Fri Feb 17, 2023 08:10:45
 117 4.5283e-08 2.5537e+05 Fri Feb 17, 2023 08:11:27
 118 4.6889e-08 2.5467e+05 Fri Feb 17, 2023 08:12:09
 119 9.4066e-08 2.5475e+05 Fri Feb 17, 2023 08:12:51
 120 1.0892e-07 2.5518e+05 Fri Feb 17, 2023 08:13:33
 121 7.8654e-08 2.5502e+05 Fri Feb 17, 2023 08:14:15
 122 5.5850e-08 2.5414e+05 Fri Feb 17, 2023 08:14:58
 123 6.5924e-08 2.5416e+05 Fri Feb 17, 2023 08:15:40
 124 5.8445e-08 2.5608e+05 Fri Feb 17, 2023 08:16:23
 125 7.4771e-08 2.5475e+05 Fri Feb 17, 2023 08:17:04
 126 9.1982e-08 2.6044e+05 Fri Feb 17, 2023 08:17:46
 127 7.9292e-08 2.5720e+05 Fri Feb 17, 2023 08:18:28
 128 5.7563e-08 2.5723e+05 Fri Feb 17, 2023 08:19:11
 129 5.1478e-08 2.5630e+05 Fri Feb 17, 2023 08:19:52
 130 6.7792e-08 2.5582e+05 Fri Feb 17, 2023 08:20:35
 131 6.7552e-08 2.5458e+05 Fri Feb 17, 2023 08:21:19
 132 1.3451e-05 2.7547e+05 Fri Feb 17, 2023 08:22:01
 133 9.9186e-08 3.0008e+05 Fri Feb 17, 2023 08:22:43
 134 6.1487e-08 2.8062e+05 Fri Feb 17, 2023 08:23:26
 135 9.8840e-08 2.6977e+05 Fri Feb 17, 2023 08:24:08
 136 7.1119e-08 2.6732e+05 Fri Feb 17, 2023 08:24:50
 137 8.4347e-08 2.6239e+05 Fri Feb 17, 2023 08:25:34
 138 8.4888e-08 2.8356e+05 Fri Feb 17, 2023 08:26:16
 139 8.8095e-08 2.7001e+05 Fri Feb 17, 2023 08:26:58
 140 5.7661e-08 2.6567e+05 Fri Feb 17, 2023 08:27:40
 141 5.2874e-08 2.6346e+05 Fri Feb 17, 2023 08:28:22
Loosening gap stiffness to improve convergence
 142 2.4066e-07 2.5976e+05 Fri Feb 17, 2023 08:29:04
 143 1.8710e-08 4.2414e+05 Fri Feb 17, 2023 08:29:46
 144 1.4229e-11 3.7598e+05 Fri Feb 17, 2023 08:30:28
Adjusted gap stiffness to prevent interpenetration
 145 2.8200e-08 3.5965e+05 Fri Feb 17, 2023 08:31:12
 146 1.8107e-09 3.2997e+05 Fri Feb 17, 2023 08:31:55
 147 1.4521e-06 3.1972e+05 Fri Feb 17, 2023 08:32:37
 148 8.4482e-09 3.4040e+05 Fri Feb 17, 2023 08:33:19
 149 7.1332e-07 3.3546e+05 Fri Feb 17, 2023 08:34:01
 150 6.1081e-09 3.3426e+05 Fri Feb 17, 2023 08:34:48
 151 7.0771e-07 3.3504e+05 Fri Feb 17, 2023 08:35:31
 152 6.1759e-09 3.3538e+05 Fri Feb 17, 2023 08:36:14
 153 1.4985e-06 3.2793e+05 Fri Feb 17, 2023 08:36:57
 154 8.2031e-09 3.4151e+05 Fri Feb 17, 2023 08:37:40
 155 7.2095e-07 3.3592e+05 Fri Feb 17, 2023 08:38:23
 156 6.9027e-09 3.3350e+05 Fri Feb 17, 2023 08:39:03
 157 7.0358e-07 3.3479e+05 Fri Feb 17, 2023 08:39:46
 158 7.2600e-09 3.3489e+05 Fri Feb 17, 2023 08:40:29
 159 1.4456e-06 3.2722e+05 Fri Feb 17, 2023 08:41:11
 160 8.4897e-09 3.4237e+05 Fri Feb 17, 2023 08:41:55
 161 7.1577e-07 3.3672e+05 Fri Feb 17, 2023 08:42:37
 162 6.8557e-09 3.3388e+05 Fri Feb 17, 2023 08:43:20
 163 7.0876e-07 3.3475e+05 Fri Feb 17, 2023 08:44:03
 164 6.8628e-09 3.3492e+05 Fri Feb 17, 2023 08:44:45
 165 1.5032e-06 3.2760e+05 Fri Feb 17, 2023 08:45:29
 166 8.6942e-09 3.4225e+05 Fri Feb 17, 2023 08:46:14
 167 7.2145e-07 3.3608e+05 Fri Feb 17, 2023 08:46:59
Loosening gap stiffness to improve convergence
 168 4.9275e-08 3.3360e+05 Fri Feb 17, 2023 08:47:43
 169 7.1184e-08 4.3826e+05 Fri Feb 17, 2023 08:48:27
 170 9.7485e-10 4.1120e+05 Fri Feb 17, 2023 08:49:11
Adjusted gap stiffness to prevent interpenetration
 171 1.6248e-07 4.0265e+05 Fri Feb 17, 2023 08:49:56
 172 1.7094e-09 3.8165e+05 Fri Feb 17, 2023 08:50:40
 173 7.2348e-08 3.7901e+05 Fri Feb 17, 2023 08:51:24
 174 1.1007e-09 3.7317e+05 Fri Feb 17, 2023 08:52:06
 175 1.5279e-07 3.7274e+05 Fri Feb 17, 2023 08:52:48
 176 1.6686e-09 3.7340e+05 Fri Feb 17, 2023 08:53:32
 177 7.2210e-08 3.7132e+05 Fri Feb 17, 2023 08:54:16
 178 1.0986e-09 3.6944e+05 Fri Feb 17, 2023 08:55:01
 179 1.5281e-07 3.7019e+05 Fri Feb 17, 2023 08:55:45
 180 1.6672e-09 3.7186e+05 Fri Feb 17, 2023 08:56:29
 181 7.2214e-08 3.7710e+05 Fri Feb 17, 2023 08:57:14
 182 1.0986e-09 3.7342e+05 Fri Feb 17, 2023 08:57:59
 183 1.5281e-07 3.7270e+05 Fri Feb 17, 2023 08:58:45
 184 1.6673e-09 3.7354e+05 Fri Feb 17, 2023 08:59:30
 185 7.2205e-08 3.7138e+05 Fri Feb 17, 2023 09:00:14
 186 1.0987e-09 3.6952e+05 Fri Feb 17, 2023 09:00:59
 187 1.5281e-07 3.7012e+05 Fri Feb 17, 2023 09:01:45
 188 1.6670e-09 3.7182e+05 Fri Feb 17, 2023 09:02:27
 189 7.2211e-08 3.7710e+05 Fri Feb 17, 2023 09:03:10
 190 1.0986e-09 3.7343e+05 Fri Feb 17, 2023 09:03:52
 191 1.5281e-07 3.7269e+05 Fri Feb 17, 2023 09:04:35
 192 1.6673e-09 3.7355e+05 Fri Feb 17, 2023 09:05:16
 193 7.2205e-08 3.7141e+05 Fri Feb 17, 2023 09:05:58
Loosening gap stiffness to improve convergence
 194 1.3992e-08 3.6951e+05 Fri Feb 17, 2023 09:06:39
 195 1.5492e-08 4.8051e+05 Fri Feb 17, 2023 09:07:21
 196 3.0527e-10 4.6902e+05 Fri Feb 17, 2023 09:08:08

 

 

 

 

 

 

skunks
skunksAnswer
19-Tanzanite
Feb 17, 2023 11:38 AM UTC

example contact

24 replies

12-Amethyst
Feb 17, 2023 8:48 AM UTC

Can you post a few screenshots of your assembly? That would help us in understanding what you are trying to do.

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16-Pearl
Feb 17, 2023 9:22 AM UTC

sorry can't post screenshots here is a sketch of a half of it and some connections

Bolted connection

ilyachaban_1-1676625680311.png

pin connection

ilyachaban_2-1676625698780.png

 

rough sketch

ilyachaban_3-1676625721758.png

 

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skunks
19-Tanzanite
Feb 17, 2023 9:51 AM UTC

contacts are very complicated, please upload STEP

 

 

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3-Newcomer
Mar 15, 2023 6:52 AM UTC

Hello,

I came here to say only  that solution worked for me thanks to the community and the members for the solution. please keep sharing such post here .

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olivierlp
Community Manager
Mar 15, 2023 3:59 PM UTC

Thank you for the appreciation, @PP_10622270, and welcome to the PTC Community!

Thanks also to all participants in this topic! 

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Olivier