1{
2    "Name": "HMMWV Pac89 Tire",
3    "Type": "Tire",
4    "Template": "Pac89Tire",
5    "Mass": 37.6,
6    "Inertia": [
7        3.84,
8        6.69,
9        3.84
10    ],
11    "Coefficient of Friction": 0.8, // these parameters have been measured on a road with this friction
12    "Design Parameters": {
13        "Unloaded Radius": 0.464,
14        "Width": 0.318,
15        "Vertical Stiffness": 326332.4234,  // defines linear stiffness, when no curve table is present
16        "Vertical Damping": 3483.932502,
17            "Vertical Curve Data": [[0.0, 0.0], // defines nonlinear vertical stiffness, takes priority over the linear model
18                   [0.01, 2830.0],
19                   [0.02, 6212.0],
20                   [0.03, 10146.0],
21                   [0.04, 14632.0],
22                   [0.05, 19670.0],
23                   [0.06, 25260.0],
24                   [0.07, 31402.0],
25                   [0.08, 38096.0],
26                   [0.09, 45342.0],
27                   [0.10, 53140.0]],
28        "Lateral Stiffness": 261065.0,
29        "Rolling Resistance": 0.015
30    },
31     "Lateral Coefficients": {
32     "a0" : 1.49975356208205,        // shape factor
33     "a1" : -4.84987524731462,       // peak factor calculation
34     "a2" : 812.449795340733,        // peak factor calculation
35     "a3" : 2613.92367840654,        // BCD (slope at zero slip) calculation
36     "a4" : 48.857910109076,          // BCD (slope at zero slip) calculation
37     "a5" : 0.0,                                  // BCD (slope at zero slip) calculation
38     "a6" : -0.00879541881020228, // curvature calculation
39     "a7" : 0.376999015041155,       // curvature calculation
40     "a8" : 0.0,                                  // horizontal shift calculation
41     "a9" : 0.0,                                  // horizontal shift calculation
42     "a10" : 0.0,                                // horizontal shift calculation
43     "a11" : 0.0,                                // vertical shift calculation
44     "a12" : 0.0,                                // vertical shift calculation
45     "a13" : 0.0                                 // vertical shift calculation
46    },
47     "Longitudinal Coefficients": {
48      "b0" : 1.50018802672136,      // shape factor
49      "b1" : -15.7761466722458,     // peak factor calculation
50      "b2" : 1022.11238546683,      // peak factor calculation
51      "b3" : -2.55317715303733,     // BCD (slope at zero slip) calculation
52      "b4" : 208.777316195246,      // BCD (slope at zero slip) calculation
53      "b5" : 0.0073134908964823,   // BCD (slope at zero slip) calculation
54      "b6" : -0.00376410345674027,  // curvature calculation
55      "b7" : 0.156330736057758,       // curvature calculation
56      "b8" : -1.15310023217878,        // curvature calculation
57      "b9" : 0.0,                                   // horizontal shift calculation
58      "b10" : 0.0                                   // horizontal shift calculation
59   },
60     "Aligning Coefficients": {
61      "c0" : 2.34,                                  // shape factor
62      "c1" : 0.990427,                          // peak factor calculation
63      "c2" : 2.96848,                            // peak factor calculation
64      "c3" : -0.277098,                         // BCD (slope at zero slip) calculation
65      "c4" : -0.944859,                         // BCD (slope at zero slip) calculation
66      "c5" : 0.0,                                    // BCD (slope at zero slip) calculation
67      "c6" : 0.0027699,                        // BCD (slope at zero slip) calculation
68      "c7" : -0.0001151,                       // curvature calculation
69      "c8" : 0.10,                                  // curvature calculation
70      "c9" : -1.3329,                             // curvature calculation
71      "c10" : 0.0,                                  // curvature calculation
72      "c11" : 0.0,                                  // horizontal shift calculation
73      "c12" : 0.0,                                  // horizontal shift calculation
74      "c13" : 0.0,                                  // horizontal shift calculation
75      "c14" : 0.0,                                  // vertical shift calculation
76      "c15" : 0.0,                                  // vertical shift calculation
77      "c16" : 0.0,                                  // vertical shift calculation
78      "c17" : 0.0                                   // vertical shift calculation
79      },
80    "Visualization": {
81        "Mesh Filename Left": "hmmwv/hmmwv_tire_left.obj",
82        "Mesh Filename Right": "hmmwv/hmmwv_tire_right.obj",
83        "Width": 0.318
84    }
85}
86