Adams Tire support for DOE

The PAC2002, PAC-MC, PAC-TIME and FTire models offer the user to define a set of DOE parameters in the property file. Both Adams Car and Adams View support this functionality by creating an array for each tire containing these parameters and which are then referenced by Adams View Design Variables. These Design Variables can be used in for example, Adams Insight to change tire properties in design of experiments studies.

Example tire property files (that is, acar/shared_car_database.cdb/tires.tbl/pac2002_235_60R16_doe.tir) are included in the Adams Car tire database. The section [DOE_PARAM_DEF] in the property file contains the names of the parameters which are chosen as DOE parameters, as shown below:

When creating a tire in Adams Car or Adams View, the ac_tire UDE respectively vpg_tire creates Adams View Design Variables based on the [DOE_PARAMETERS] section in the tire property file. For each tire, an array is created which references the Design Variables. The actual values of the DOE parameters defined in the [DOE_PARAM] are passed via this array (referenced by the 17th element of the tire input array) to the tire model.

The design variables (for example, .MDI_Demo_Vehicle.TR_Front_Tires.til_wheel.doe_p01) can be used in for example, Adams Insight to perform studies varying PAC2002 properties.