Methods and systems for simulating multistage cyclic symmetry assemblies

A system for providing a digital computer simulation characterizing physical behaviors of multistage cyclic symmetry assemblies comprising:

• a bus;
• a memory storing instructions;
• one or more processors coupled to the bus and the memory, the one or more processors executing the instructions from the memory to perform a method comprises:
• receiving, by a computer-aided engineering analysis (CAE) software platform, data characterizing an assembly containing a first stage and a second stage, the first stage having a first cyclic symmetry and the second stage having a second cyclic symmetry different from the first cyclic symmetry, the received data including a first mesh and a second mesh respectively representing the first stage and the second stage, the first mesh and the second mesh being mismatched at an interstage boundary;
• initializing, by the CAE software platform, a first dynamic analysis model representing the assembly, the first dynamic analysis model including the first mesh coupled with the second mesh based on a first set of constraints associated with a first group of linked harmonic indices;
• initializing, by the CAE software platform, a second dynamic analysis model representing the assembly, the second dynamic analysis model including the first mesh coupled with the second mesh based on a second set of constraints associated with a second group of linked harmonic indices distinct from the first group;
• simulating, by the CAE software platform, physical behavior of the assembly based on the first dynamic analysis model and the second dynamic analysis model to generate simulation results, the simulation results being generated in parallel using (i) by a first processor, the first dynamic analysis model associated with the first set of constraint equations which are based on the first group of linked harmonic indices and (ii) by a second processor, the second dynamic analysis model associated with the second set of constraint equations which are based on the second group of linked harmonic indices;
• and
• calculating, by the CAE software platform, physical behaviors of the assembly using one or more of the simulation results;
• and
• providing, by the CAE software platform, the calculated physical behaviors of the assembly as output.

A non-transitory computer-readable medium storing instructions for commanding one or more processors to perform operations for providing a digital computer simulation characterizing physical behaviors of multistage cyclic symmetry assemblies comprising:

• receiving, by a computer-aided engineering analysis (CAE) software platform, data characterizing an assembly containing a first stage and a second stage, the first stage having a first cyclic symmetry and the second stage having a second cyclic symmetry different from the first cyclic symmetry, the received data including a first mesh and a second mesh respectively representing the first stage and the second stage, the first mesh and the second mesh being mismatched at an interstage boundary;
• initializing, by the CAE software platform, a first dynamic analysis model representing the assembly, the first dynamic analysis model including the first mesh coupled with the second mesh based on a first set of constraints associated with a first group of linked harmonic indices;
• initializing, by the CAE software platform, a second dynamic analysis model representing the assembly, the second dynamic analysis model including the first mesh coupled with the second mesh based on a second set of constraints associated with a second group of linked harmonic indices distinct from the first group;
• simulating, by the CAE software platform, physical behavior of the assembly based on the first dynamic analysis model and the second dynamic analysis model to generate simulation results, the first dynamic analysis model being distributed to a first process and the second dynamic analysis model being distributed to a second, different process
• calculating, by the CAE software platform, physical behaviors of the assembly using one or more of the simulation results;
• providing, by the CAE software platform, the calculated physical behaviors of the assembly as output.