Methods of designing earth-boring tools using a plurality of wear state values and related methods of forming earth-boring tools

A method of enhancing a performance parameter in the design of an earth-boring tool, the method comprising:

• calculating, with the assistance of a computer, a performance parameter of an earth-boring tool under design based at least partially on values of design variables including a plurality of values of a wear state variable and a first set of values of other design variables of the drill bit under design;
• calculating, with the assistance of a computer, the performance parameter based at least partially on values of design variables including a second set of values of the other design variables and the plurality of values of the wear state variable, the second set of values of the other design variables different than the first set of values of other design variables;
• comparing the performance parameter based at least partially on the first set of values of other design variables with the performance parameter based at least partially on the second set of values of the other design variables;
• and
• selecting one of the first and second sets of values of the other design variables in consideration of the comparison.

A method of forming an earth-boring tool, comprising:

• designing an earth-boring tool, comprising:
• enhancing at least one dynamic parameter of the earth-boring tool comprising:
• calculating a first value of the at least one dynamic parameter based at least partially on at least one design variable value and a plurality of values of a wear state variable of the earth-boring tool;
• and
• adjusting the at least one design variable value and calculating a second value of the at least one dynamic parameter based at least partially on the adjusted at least one design variable value and the plurality of values of the wear state variable of the earth-boring tool;
• and
• outputting a design of the earth-boring tool based on the enhancement;
• and
• designing the earth-boring tool based at least in part on the design.