*HEADING FRICTIONAL BRAKING OF A ROTATING RIGID BODY IN 3D (RIGID BODY COMPRISING C3D4 ELEMENTS) ** *NODE, NSET=AXIS 100, 0.000, 0.000, 0.000 *NODE, NSET=DRUM 1000, 0.157721, 0.0867407, 0.075 1001, 0.157721, 0.0867407 1002, 0.157721, 0.0867407, -0.075 1003, 0.13624, 0.117637, 0.075 1004, 0.13624, 0.117637 1005, 0.13624, 0.117637, -0.075 1006, 0.108805, 0.143393, 0.075 1007, 0.108805, 0.143393 1008, 0.108805, 0.143393, -0.075 1009, 0.0766144, 0.162881, 0.075 1010, 0.0766144, 0.162881 1011, 0.0766144, 0.162881, -0.075 1012, 0.0410753, 0.175251, 0.075 1013, 0.0410753, 0.175251 1014, 0.0410753, 0.175251, -0.075 1015, 0.00374102, 0.179961, 0.075 1016, 0.00374102, 0.179961 1017, 0.00374102, 0.179961, -0.075 1018, -0.0337568, 0.176806, 0.075 1019, -0.0337568, 0.176806 1020, -0.0337568, 0.176806, -0.075 1021, -0.0697792, 0.165924, 0.075 1022, -0.0697792, 0.165924 1023, -0.0697792, 0.165924, -0.075 1024, -0.102752, 0.147791, 0.075 1025, -0.102752, 0.147791 1026, -0.102752, 0.147791, -0.075 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0.136886 1122, -0.145816, 0.136886, -0.075 1123, -0.171089, 0.103578, 0.075 1124, -0.171089, 0.103578 1125, -0.171089, 0.103578, -0.075 1126, -0.188886, 0.0657432, 0.075 1127, -0.188886, 0.0657432 1128, -0.188886, 0.0657432, -0.075 1129, -0.198427, 0.025035, 0.075 1130, -0.198427, 0.025035 1131, -0.198427, 0.025035, -0.075 1132, -0.199296, -0.0167673, 0.075 1133, -0.199296, -0.0167673 1134, -0.199296, -0.0167673, -0.075 1135, -0.191455, -0.0578369, 0.075 1136, -0.191455, -0.0578369 1137, -0.191455, -0.0578369, -0.075 1138, -0.175246, -0.0963787, 0.075 1139, -0.175246, -0.0963787 1140, -0.175246, -0.0963787, -0.075 1141, -0.151378, -0.130708, 0.075 1142, -0.151378, -0.130708 1143, -0.151378, -0.130708, -0.075 1144, -0.120894, -0.159325, 0.075 1145, -0.120894, -0.159325 1146, -0.120894, -0.159325, -0.075 1147, -0.085127, -0.180979, 0.075 1148, -0.085127, -0.180979 1149, -0.085127, -0.180979, -0.075 1150, -0.0456392, -0.194723, 0.075 1151, -0.0456392, -0.194723 1152, -0.0456392, -0.194723, -0.075 1153, -0.00415661, -0.199957, 0.075 1154, -0.00415661, -0.199957 1155, -0.00415661, -0.199957, -0.075 1156, 0.0375075, -0.196451, 0.075 1157, 0.0375075, -0.196451 1158, 0.0375075, -0.196451, -0.075 1159, 0.0775325, -0.18436, 0.075 1160, 0.0775325, -0.18436 1161, 0.0775325, -0.18436, -0.075 1162, 0.114169, -0.164212, 0.075 1163, 0.114169, -0.164212 1164, 0.114169, -0.164212, -0.075 1165, 0.145816, -0.136886, 0.075 1166, 0.145816, -0.136886 1167, 0.145816, -0.136886, -0.075 1168, 0.171089, -0.103578, 0.075 1169, 0.171089, -0.103578 1170, 0.171089, -0.103578, -0.075 1171, 0.188886, -0.0657433, 0.075 1172, 0.188886, -0.0657433 1173, 0.188886, -0.0657433, -0.075 1174, 0.198427, -0.0250352, 0.075 1175, 0.198427, -0.0250352 1176, 0.198427, -0.0250352, -0.075 1177, 0.199296, 0.0167673, 0.075 1178, 0.199296, 0.0167673 1179, 0.199296, 0.0167673, -0.075 1180, 0.191455, 0.0578367, 0.075 1181, 0.191455, 0.0578367 1182, 0.191455, 0.0578367, -0.075 1183, 0.175246, 0.0963786, 0.075 1184, 0.175246, 0.0963786 1185, 0.175246, 0.0963786, -0.075 ** ** *ELEMENT, TYPE=C3D4, ELSET=DRUM 1000, 1000, 1003, 1093, 1091 1001, 1096, 1093, 1003, 1097 1002, 1004, 1091, 1097, 1003 1003, 1094, 1097, 1091, 1093 1004, 1091, 1003, 1093, 1097 1005, 1004, 1097, 1091, 1005 1006, 1094, 1091, 1097, 1095 1007, 1002, 1095, 1005, 1091 1008, 1098, 1005, 1095, 1097 1009, 1091, 1005, 1097, 1095 1010, 1006, 1099, 1003, 1007 1011, 1096, 1003, 1099, 1097 1012, 1004, 1097, 1007, 1003 1013, 1100, 1007, 1097, 1099 1014, 1003, 1007, 1099, 1097 1015, 1004, 1007, 1097, 1005 1016, 1100, 1097, 1007, 1101 1017, 1008, 1005, 1101, 1007 1018, 1098, 1101, 1005, 1097 1019, 1005, 1007, 1097, 1101 1020, 1006, 1009, 1099, 1007 1021, 1102, 1099, 1009, 1103 1022, 1010, 1007, 1103, 1009 1023, 1100, 1103, 1007, 1099 1024, 1007, 1009, 1099, 1103 1025, 1010, 1103, 1007, 1011 1026, 1100, 1007, 1103, 1101 1027, 1008, 1101, 1011, 1007 1028, 1104, 1011, 1101, 1103 1029, 1007, 1011, 1103, 1101 1030, 1012, 1105, 1009, 1013 1031, 1102, 1009, 1105, 1103 1032, 1010, 1103, 1013, 1009 1033, 1106, 1013, 1103, 1105 1034, 1009, 1013, 1105, 1103 1035, 1010, 1013, 1103, 1011 1036, 1106, 1103, 1013, 1107 1037, 1014, 1011, 1107, 1013 1038, 1104, 1107, 1011, 1103 1039, 1011, 1013, 1103, 1107 1040, 1012, 1015, 1105, 1013 1041, 1108, 1105, 1015, 1109 1042, 1016, 1013, 1109, 1015 1043, 1106, 1109, 1013, 1105 1044, 1013, 1015, 1105, 1109 1045, 1016, 1109, 1013, 1017 1046, 1106, 1013, 1109, 1107 1047, 1014, 1107, 1017, 1013 1048, 1110, 1017, 1107, 1109 1049, 1013, 1017, 1109, 1107 1050, 1018, 1111, 1015, 1019 1051, 1108, 1015, 1111, 1109 1052, 1016, 1109, 1019, 1015 1053, 1112, 1019, 1109, 1111 1054, 1015, 1019, 1111, 1109 1055, 1016, 1019, 1109, 1017 1056, 1112, 1109, 1019, 1113 1057, 1020, 1017, 1113, 1019 1058, 1110, 1113, 1017, 1109 1059, 1017, 1019, 1109, 1113 1060, 1018, 1021, 1111, 1019 1061, 1114, 1111, 1021, 1115 1062, 1022, 1019, 1115, 1021 1063, 1112, 1115, 1019, 1111 1064, 1019, 1021, 1111, 1115 1065, 1022, 1115, 1019, 1023 1066, 1112, 1019, 1115, 1113 1067, 1020, 1113, 1023, 1019 1068, 1116, 1023, 1113, 1115 1069, 1019, 1023, 1115, 1113 1070, 1024, 1117, 1021, 1025 1071, 1114, 1021, 1117, 1115 1072, 1022, 1115, 1025, 1021 1073, 1118, 1025, 1115, 1117 1074, 1021, 1025, 1117, 1115 1075, 1022, 1025, 1115, 1023 1076, 1118, 1115, 1025, 1119 1077, 1026, 1023, 1119, 1025 1078, 1116, 1119, 1023, 1115 1079, 1023, 1025, 1115, 1119 1080, 1024, 1027, 1117, 1025 1081, 1120, 1117, 1027, 1121 1082, 1028, 1025, 1121, 1027 1083, 1118, 1121, 1025, 1117 1084, 1025, 1027, 1117, 1121 1085, 1028, 1121, 1025, 1029 1086, 1118, 1025, 1121, 1119 1087, 1026, 1119, 1029, 1025 1088, 1122, 1029, 1119, 1121 1089, 1025, 1029, 1121, 1119 1090, 1030, 1123, 1027, 1031 1091, 1120, 1027, 1123, 1121 1092, 1028, 1121, 1031, 1027 1093, 1124, 1031, 1121, 1123 1094, 1027, 1031, 1123, 1121 1095, 1028, 1031, 1121, 1029 1096, 1124, 1121, 1031, 1125 1097, 1032, 1029, 1125, 1031 1098, 1122, 1125, 1029, 1121 1099, 1029, 1031, 1121, 1125 1100, 1030, 1033, 1123, 1031 1101, 1126, 1123, 1033, 1127 1102, 1034, 1031, 1127, 1033 1103, 1124, 1127, 1031, 1123 1104, 1031, 1033, 1123, 1127 1105, 1034, 1127, 1031, 1035 1106, 1124, 1031, 1127, 1125 1107, 1032, 1125, 1035, 1031 1108, 1128, 1035, 1125, 1127 1109, 1031, 1035, 1127, 1125 1110, 1036, 1129, 1033, 1037 1111, 1126, 1033, 1129, 1127 1112, 1034, 1127, 1037, 1033 1113, 1130, 1037, 1127, 1129 1114, 1033, 1037, 1129, 1127 1115, 1034, 1037, 1127, 1035 1116, 1130, 1127, 1037, 1131 1117, 1038, 1035, 1131, 1037 1118, 1128, 1131, 1035, 1127 1119, 1035, 1037, 1127, 1131 1120, 1036, 1039, 1129, 1037 1121, 1132, 1129, 1039, 1133 1122, 1040, 1037, 1133, 1039 1123, 1130, 1133, 1037, 1129 1124, 1037, 1039, 1129, 1133 1125, 1040, 1133, 1037, 1041 1126, 1130, 1037, 1133, 1131 1127, 1038, 1131, 1041, 1037 1128, 1134, 1041, 1131, 1133 1129, 1037, 1041, 1133, 1131 1130, 1042, 1135, 1039, 1043 1131, 1132, 1039, 1135, 1133 1132, 1040, 1133, 1043, 1039 1133, 1136, 1043, 1133, 1135 1134, 1039, 1043, 1135, 1133 1135, 1040, 1043, 1133, 1041 1136, 1136, 1133, 1043, 1137 1137, 1044, 1041, 1137, 1043 1138, 1134, 1137, 1041, 1133 1139, 1041, 1043, 1133, 1137 1140, 1042, 1045, 1135, 1043 1141, 1138, 1135, 1045, 1139 1142, 1046, 1043, 1139, 1045 1143, 1136, 1139, 1043, 1135 1144, 1043, 1045, 1135, 1139 1145, 1046, 1139, 1043, 1047 1146, 1136, 1043, 1139, 1137 1147, 1044, 1137, 1047, 1043 1148, 1140, 1047, 1137, 1139 1149, 1043, 1047, 1139, 1137 1150, 1048, 1141, 1045, 1049 1151, 1138, 1045, 1141, 1139 1152, 1046, 1139, 1049, 1045 1153, 1142, 1049, 1139, 1141 1154, 1045, 1049, 1141, 1139 1155, 1046, 1049, 1139, 1047 1156, 1142, 1139, 1049, 1143 1157, 1050, 1047, 1143, 1049 1158, 1140, 1143, 1047, 1139 1159, 1047, 1049, 1139, 1143 1160, 1048, 1051, 1141, 1049 1161, 1144, 1141, 1051, 1145 1162, 1052, 1049, 1145, 1051 1163, 1142, 1145, 1049, 1141 1164, 1049, 1051, 1141, 1145 1165, 1052, 1145, 1049, 1053 1166, 1142, 1049, 1145, 1143 1167, 1050, 1143, 1053, 1049 1168, 1146, 1053, 1143, 1145 1169, 1049, 1053, 1145, 1143 1170, 1054, 1147, 1051, 1055 1171, 1144, 1051, 1147, 1145 1172, 1052, 1145, 1055, 1051 1173, 1148, 1055, 1145, 1147 1174, 1051, 1055, 1147, 1145 1175, 1052, 1055, 1145, 1053 1176, 1148, 1145, 1055, 1149 1177, 1056, 1053, 1149, 1055 1178, 1146, 1149, 1053, 1145 1179, 1053, 1055, 1145, 1149 1180, 1054, 1057, 1147, 1055 1181, 1150, 1147, 1057, 1151 1182, 1058, 1055, 1151, 1057 1183, 1148, 1151, 1055, 1147 1184, 1055, 1057, 1147, 1151 1185, 1058, 1151, 1055, 1059 1186, 1148, 1055, 1151, 1149 1187, 1056, 1149, 1059, 1055 1188, 1152, 1059, 1149, 1151 1189, 1055, 1059, 1151, 1149 1190, 1060, 1153, 1057, 1061 1191, 1150, 1057, 1153, 1151 1192, 1058, 1151, 1061, 1057 1193, 1154, 1061, 1151, 1153 1194, 1057, 1061, 1153, 1151 1195, 1058, 1061, 1151, 1059 1196, 1154, 1151, 1061, 1155 1197, 1062, 1059, 1155, 1061 1198, 1152, 1155, 1059, 1151 1199, 1059, 1061, 1151, 1155 1200, 1060, 1063, 1153, 1061 1201, 1156, 1153, 1063, 1157 1202, 1064, 1061, 1157, 1063 1203, 1154, 1157, 1061, 1153 1204, 1061, 1063, 1153, 1157 1205, 1064, 1157, 1061, 1065 1206, 1154, 1061, 1157, 1155 1207, 1062, 1155, 1065, 1061 1208, 1158, 1065, 1155, 1157 1209, 1061, 1065, 1157, 1155 1210, 1066, 1159, 1063, 1067 1211, 1156, 1063, 1159, 1157 1212, 1064, 1157, 1067, 1063 1213, 1160, 1067, 1157, 1159 1214, 1063, 1067, 1159, 1157 1215, 1064, 1067, 1157, 1065 1216, 1160, 1157, 1067, 1161 1217, 1068, 1065, 1161, 1067 1218, 1158, 1161, 1065, 1157 1219, 1065, 1067, 1157, 1161 1220, 1066, 1069, 1159, 1067 1221, 1162, 1159, 1069, 1163 1222, 1070, 1067, 1163, 1069 1223, 1160, 1163, 1067, 1159 1224, 1067, 1069, 1159, 1163 1225, 1070, 1163, 1067, 1071 1226, 1160, 1067, 1163, 1161 1227, 1068, 1161, 1071, 1067 1228, 1164, 1071, 1161, 1163 1229, 1067, 1071, 1163, 1161 1230, 1072, 1165, 1069, 1073 1231, 1162, 1069, 1165, 1163 1232, 1070, 1163, 1073, 1069 1233, 1166, 1073, 1163, 1165 1234, 1069, 1073, 1165, 1163 1235, 1070, 1073, 1163, 1071 1236, 1166, 1163, 1073, 1167 1237, 1074, 1071, 1167, 1073 1238, 1164, 1167, 1071, 1163 1239, 1071, 1073, 1163, 1167 1240, 1072, 1075, 1165, 1073 1241, 1168, 1165, 1075, 1169 1242, 1076, 1073, 1169, 1075 1243, 1166, 1169, 1073, 1165 1244, 1073, 1075, 1165, 1169 1245, 1076, 1169, 1073, 1077 1246, 1166, 1073, 1169, 1167 1247, 1074, 1167, 1077, 1073 1248, 1170, 1077, 1167, 1169 1249, 1073, 1077, 1169, 1167 1250, 1078, 1171, 1075, 1079 1251, 1168, 1075, 1171, 1169 1252, 1076, 1169, 1079, 1075 1253, 1172, 1079, 1169, 1171 1254, 1075, 1079, 1171, 1169 1255, 1076, 1079, 1169, 1077 1256, 1172, 1169, 1079, 1173 1257, 1080, 1077, 1173, 1079 1258, 1170, 1173, 1077, 1169 1259, 1077, 1079, 1169, 1173 1260, 1078, 1081, 1171, 1079 1261, 1174, 1171, 1081, 1175 1262, 1082, 1079, 1175, 1081 1263, 1172, 1175, 1079, 1171 1264, 1079, 1081, 1171, 1175 1265, 1082, 1175, 1079, 1083 1266, 1172, 1079, 1175, 1173 1267, 1080, 1173, 1083, 1079 1268, 1176, 1083, 1173, 1175 1269, 1079, 1083, 1175, 1173 1270, 1084, 1177, 1081, 1085 1271, 1174, 1081, 1177, 1175 1272, 1082, 1175, 1085, 1081 1273, 1178, 1085, 1175, 1177 1274, 1081, 1085, 1177, 1175 1275, 1082, 1085, 1175, 1083 1276, 1178, 1175, 1085, 1179 1277, 1086, 1083, 1179, 1085 1278, 1176, 1179, 1083, 1175 1279, 1083, 1085, 1175, 1179 1280, 1084, 1087, 1177, 1085 1281, 1180, 1177, 1087, 1181 1282, 1088, 1085, 1181, 1087 1283, 1178, 1181, 1085, 1177 1284, 1085, 1087, 1177, 1181 1285, 1088, 1181, 1085, 1089 1286, 1178, 1085, 1181, 1179 1287, 1086, 1179, 1089, 1085 1288, 1182, 1089, 1179, 1181 1289, 1085, 1089, 1181, 1179 1290, 1090, 1093, 1087, 1091 1291, 1180, 1087, 1093, 1181 1292, 1088, 1181, 1091, 1087 1293, 1094, 1091, 1181, 1093 1294, 1087, 1091, 1093, 1181 1295, 1088, 1091, 1181, 1089 1296, 1094, 1181, 1091, 1095 1297, 1092, 1089, 1095, 1091 1298, 1182, 1095, 1089, 1181 1299, 1089, 1091, 1181, 1095 *ELSET, GEN, ELSET=DRUM1 1006,1286,20 1008,1288,20 1011,1291,20 1013,1293,20 *ELSET, GEN, ELSET=DRUM2 1001,1281,20 1003,1283,20 1016,1296,20 1018,1298,20 *SOLID SECTION, ELSET=DRUM, MATERIAL=STEEL *MATERIAL, NAME=STEEL *ELASTIC 2.E+9, .3 *DENSITY 1e-6, *ELEMENT, TYPE=MASS, ELSET=PMASS 100, 100 *MASS, ELSET=PMASS 5., *ELEMENT, TYPE=ROTARYI, ELSET=RMASS 200, 100 *ROTARY INERTIA, ELSET=RMASS 0.001, 0.001, .175 ** ** Start with it spinning at 60 rad/sec. ** *BOUNDARY 100, 1, 5 *INITIAL CONDITIONS, TYPE=VELOCITY 100, 6, 60. ** ** Define a deformable brake pad. ** *NODE 501, -0.200, -0.050, -0.050 502, -0.250, -0.050, -0.050 521, -0.200, 0.050, -0.050 522, -0.250, 0.050, -0.050 600, -0.250, 0.000, 0.000 *NGEN, NSET=FSIDE 501, 521, 2 502, 522, 2 *NCOPY, SHIFT, CHANGE NUMBER=100, OLD SET=FSIDE, NEW SET=NSIDE 0.000, 0.000, 0.100 0.000, 0.000, 0.000, 1.000, 0.000, 0.000, 0.000 *NSET, NSET=PAD FSIDE, NSIDE *ELEMENT, TYPE=C3D8R, ELSET=PAD 501, 501, 503, 504, 502, 601, 603, 604, 602 *ELGEN, ELSET=PAD 501, 10, 2, 1 *SOLID SECTION, ELSET=PAD, MATERIAL=STUFF ** ** Make it a soft rubber pad. ** *MATERIAL, NAME=STUFF *HYPERELASTIC, N=1 552.E3, 138.E3, 1.45E-7 *DENSITY 5.E3, ** ** Use a second rigid body to hold the brake pad. ** *ELEMENT, TYPE=R3D4, ELSET=PLATE 601, 502, 504, 604, 602 *ELGEN, ELSET=PLATE 601, 10, 2, 1 *BOUNDARY 600, 2, 6, 0. ** ** Run the simulation for 0.2 seconds. ** *ELSET,ELSET=EALL1 PAD, *ELSET,ELSET=EALL2 PMASS, *ELSET,ELSET=EALL3 RMASS, *SURFACE,TYPE=ELEMENT, NAME=DRUM DRUM1,S4 DRUM2,S2 *SURFACE,TYPE=ELEMENT, NAME=PAD_LOAD PAD, S5 *SURFACE,TYPE=ELEMENT, NAME=PAD PAD, S3 *RIGID BODY, ELSET=DRUM, REF NODE=100 *RIGID BODY, ELSET=PLATE, REF NODE=600 *NSET,NSET=QA_TEST_AXIS AXIS, ** *STEP *DYNAMIC, EXPLICIT , .2 ** ** Define contact between the drum and the pad. ** *SURFACE INTERACTION,NAME=DRUM_PAD *FRICTION 0.15, *CONTACT PAIR,INTERACTION=DRUM_PAD DRUM, PAD ** ** Apply a constant pressure to the pad. ** *DSLOAD PAD_LOAD, P, 350.E3 ** ** Some typical output requests. ** *RESTART,TIMEMARKS=YES, WRITE, NUMBER=1 ** *FILE OUTPUT, NUMBER=2, TIMEMARKS=YES *NODE FILE,NSET=AXIS U, ** ***OUTPUT,HISTORY,TIME INTERVAL=0. ***NODE OUTPUT,NSET=AXIS **RF1,RF2,RM3,UR3,VR3,AR3 ***ENERGY OUTPUT **ALLIE,ALLKE,ALLPD,ALLSE,ALLVD,ALLWK,ETOTAL,ALLFD ***ENERGY OUTPUT,ELSET=EALL1 **ALLIE,ALLKE,ALLSE, ***ENERGY OUTPUT,ELSET=EALL2 **ALLIE,ALLKE,ALLSE, ***ENERGY OUTPUT,ELSET=EALL3 **ALLIE,ALLKE,ALLSE, ** *OUTPUT, FIELD, NUMBER INTERVAL=2, TIMEMARKS=YES *NODE OUTPUT, NSET=QA_TEST_AXIS U, *OUTPUT,FIELD,VARIABLE=PRESELECT *OUTPUT,HISTORY,VARIABLE=PRESELECT,TIMEINT=0.1 *END STEP