A discussion about choosing an objective function and constraint conditions in structural topology optimization
1. Abstract Based on some examples calculated using the 99 line code made by Sigmund [1] the structural topology optimization model construction is discussed to propose a problem that whether the topology optimization model construction could be more reasonable. In order to solve this problem, a topology optimization model according to practical engineering is constructed to search for the minimization of structural weight with a displacement constraint. And a corresponding 120 line code written in Matlab is made by us. Calculation results of the examples show that the model of the 120 line topology optimization code is more reasonable. 2.