TOPOLOGY OPTIMIZATION OF TRUSS STRUCTURES BASED ON RELIABILITY 1)

The problem of topology optimization of truss structures based on reliability is studied in this paper. First of all, the structural analysis under the action of random loads is carried out and the mean value and variance of all joint's displacement and bar's stress in the structure are obtained by means of three fundamental equations (equilibrium, physical and geometric) in structural mechanics, as well as the property of moment of random variable. According to this, the mathematical model of topology opt...