Patent ID: 8589131

Claim:
A real-time performance simulation method for a rotary wing aircraft having at least one rotor including a first rotor, the method comprising: determining geometric data of one blade of the first rotor, on the basis of which movement of the first rotor is determined; determining external forces and moments that affect each blade of the first rotor in each iteration of numerical real-time integration of equations of motion of the rotary wing aircraft; discretizing the first rotor into virtual blade elements on which calculation to identify dynamic balance of the first rotor is to be performed, wherein the identifying dynamic balance includes: determining, by a processor, the movement of the first rotor to obtain real-time aerodynamic actions that include forces transmitted to the rotary wing aircraft and moments with respect to articulations for each blade in each iteration, wherein the discretization is done on a first rotor disc instead of on each blade itself generating the virtual blade elements on an area covering the first rotor disc and each of the virtual blade elements is connected to the first rotor disc, which does not rotate, instead of to each blade, and wherein the discretization divides the first rotor disc circumferentially into n a sectors and radially into n e sectors, which results in n a ×n e virtual blade elements.