Luo Shao-ming

Research on PID Control Parameters Tuning Based on Election-Survey Optimization Algorithm

According to the tuning rule of PID control parameters, IAE, ISE, ITAE, ITSE performance criteria are chosen to be optimization object, a new optimization method of PID control parameters tuning based on Election-survey Optimization Algorithm is presented, and is applied to design optimally a PID control, and the simulation results show that satisfactory performances are obtained by means of this method developed.

THEORETICAL STUDY OF THREE-DIMENSIONAL NUMERICAL MANIFOLD METHOD

The three-dimensional numerical manifold method(NMM) is studied on the basis of two-dimensional numerical manifold method. The three-dimensional cover displacement function is studied. The mechanical analysis and Hammer integral method of three-dimensional numerical manifold method are put forward. The stiffness matrix of three-dimensional manifold element is derived and the dissection rules are given. The theoretical system and the numerical realizing method of three-dimensional numerical manifold method are systematically studied. As an example, the cantilever with load on the end is calculated, and the results show that the precision and efficiency are agreeable.

Numerical Manifold Method for the Forced Vibration of Thin Plates during Bending

A novel numerical manifold method was derived from the cubic B-spline basis function. The new interpolation function is characterized by high-order coordination at the boundary of a manifold element. The linear elastic-dynamic equation used to solve the bending vibration of thin plates was derived according to the principle of minimum instantaneous potential energy. The method for the initialization of the dynamic equation and its solution process were provided. Moreover, the analysis showed that the calculated stiffness matrix exhibited favorable performance. Numerical results showed that the generalized degrees of freedom were significantly fewer and that the calculation accuracy was higher for the manifold method than for the conventional finite element method.

Tuning digital PID controllers for discrete-time system by Election Campaign Optimization algorithm

In this paper, Election Campaign Optimization algorithm is applied to solve the difficulty in PID control that the tuning parameters of PID controllers could not be determined well by conventional methods. Tuning PID controller parameters is a typical three variable optimization problem without constraint condition. An example is employed to test this method, It is found that the method could be find the best parameters that can bring on a optimal control performance, the simulation results is better than that in involved reference. This indicates that the tuning method is feasible.

Election Campaign Optimization Algorithm for Multi-peak Optimization Problems

Multi-peak Optimization problems are solved by Election Campaign Optimization algorithm. 3 Multi-peak Optimization problems are selected as examples to verify this algorithm. It is found that Election Campaign Optimization algorithm can jump out of local peaks easily and search out the all global optimal solution of Multi-peak Optimization problems simultaneously. It means that Election Campaign Optimization algorithm is a high efficient optimization algorithm for Multi-peak Optimization problems.