Topology Optimization method

 

I am a university student and I have been using Hypermesh to do my bachelors thesis. I have done a topology optimization on a 3D model (objective function minimize the mass and constrains the displacement of the object).

 

I am really happy with the result, it looks really good and I really like your program. However, I am now writing my thesis and must included the method in which the optimization was performed. I have searched in the user guide and instructions but have not found what methodology is used. Would you be able to provide me with these details? 

 

Your time and assistance is greatly appreciated. 

 

Thank you and I apologize if I have overlooked this information in the user guide. 

 

Best