Optimization design of the tuning method for FBG spectroscopy based on the numerical analysis of all-fiber Raman temperature lidar

2018 ◽  
Vol 40 ◽  
pp. 165-171 ◽  
Author(s):  
Li Wang ◽  
Jun Wang ◽  
Dong Bao ◽  
Rong Yang ◽  
Qing Yan ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Optimization Design ◽  
Tuning Method

scholarly journals Multiobjective Optimization Design of a Fractional Order PID Controller for a Gun Control System

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Qiang Gao ◽  
Jilin Chen ◽  
Li Wang ◽  
Shiqing Xu ◽  
Yuanlong Hou
Keyword(s):  
Control System ◽  
Multiobjective Optimization ◽  
Fractional Order ◽  
Optimization Design ◽  
Differential Evolution Algorithm ◽  
Optimal Solution ◽  
Parameter Tuning ◽  
Gun Control ◽  
Tuning Method ◽  
Fractional Order Pid

Motion control of gun barrels is an ongoing topic for the development of gun control equipments possessing excellent performances. In this paper, a typical fractional order PID control strategy is employed for the gun control system. To obtain optimal parameters of the controller, a multiobjective optimization scheme is developed from the loop-shaping perspective. To solve the specified nonlinear optimization problem, a novel Pareto optimal solution based multiobjective differential evolution algorithm is proposed. To enhance the convergent rate of the optimization process, an opposition based learning method is embedded in the chaotic population initialization process. To enhance the robustness of the algorithm for different problems, an adapting scheme of the mutation operation is further employed. With assistance of the evolutionary algorithm, the optimal solution for the specified problem is selected. The numerical simulation results show that the control system can rapidly follow the demand signal with high accuracy and high robustness, demonstrating the efficiency of the proposed controller parameter tuning method.

Research on Optimization Design for Reinforcing Method of Irregular Cross-Section Arch

2012 ◽  
Vol 166-169 ◽  
pp. 1684-1688
Author(s):  
Xu Yong Chen ◽  
Bihai Liao ◽  
Jie Li
Keyword(s):  
Finite Element ◽  
Numerical Analysis ◽  
Statistical Method ◽  
Cross Section ◽  
Theoretical Basis ◽  
Optimization Design ◽  
Direct Production ◽  
Arch Bridge ◽  
Physical Unit ◽  
Element Simulation

This article makes finite-element simulation and analysis on a reinforced two-way curved arch bridge by means of ANSYS, a tool of finite element numerical analysis. Through comparison with the testing results after reinforced, it validates feasibility and reasonability to analysze a reinforced two-way curved arch bridge using a physical unit of ANSYS. On basis of this, it brings forward an idea of optimization design and researches the real two bridges for optimization of reinforcement using ANSYS analyzing and mathematically statistical method. Through effects after and prior optimization, it demonstrates necessity for optimization design of reinforcement and attains some significant conclusions which provide theoretical basis to direct production in the future.

Numerical Analysis and Optimization Design on Critical Parameter of Plane Four-Bar Linkage for a Crusher

2012 ◽  
Vol 220-223 ◽  
pp. 884-890
Author(s):  
Qiu Hong Song ◽  
Yong Mei Ma ◽  
Shou Qi Cao ◽  
Chao Lv ◽  
Jun Li
Keyword(s):  
Numerical Analysis ◽  
Optimization Design ◽  
Critical Parameter ◽  
Simulation Optimization ◽  
Critical Values ◽  
Decisive Factor ◽  
Parameterized Modeling ◽  
Mechanical Products ◽  
Four Bar Linkage

Plane four-bar linkage is widely used in mechanical products; it is a decisive factor to define the characteristics and output of crusher as the key mechanism for the model crusher. At first, expound and classify the critical parameter in theory; then ADAMS is used in parameterized modeling of plane four-bar linkage, according to the simulation optimization data of critical parameter in ADAMS, the relations among the critical parameter and influence on crusher performance are demonstrated after numerical analysis. Finally, the optimal critical values are optimized, which are applied into the design of a crusher.

Optimization Design of Engine Mounting System

2014 ◽  
Vol 543-547 ◽  
pp. 168-172
Author(s):  
Bin Zhou
Keyword(s):  
Mechanical Properties ◽  
Numerical Analysis ◽  
Optimization Design ◽  
Transmission Rate ◽  
Low Transmission ◽  
Transfer Ratio ◽  
Speed Change

This paper studied the original rubber suspensions, which found that the original rubber suspension has high transfer ratio, not conducive to energy attenuation. In view of this situation, redesigned of the new rubber suspension, the new rubber suspension was studied by 3D numerical analysis, the results show, the new suspension on the structure and mechanical properties can meet the needs of the engine. The new suspension and the original suspension are doing the contrast test, the results show, the new suspension has the low transmission rate, and transmission rate increases with the speed change relatively flat, which to improve the comfort of the car.

The FOPS Design of Wheel Loader Cabin Based on Topology Optimization

2011 ◽  
Vol 117-119 ◽  
pp. 323-327
Author(s):  
Xiao Ming Wu ◽  
Wen Biao Li ◽  
Chun Liu
Keyword(s):  
Topology Optimization ◽  
Numerical Analysis ◽  
Response Function ◽  
Optimization Design ◽  
Optimized Design ◽  
Light Weight ◽  
Protective Structure ◽  
Topology Structure ◽  
Wheel Loader ◽  
Impact Condition

Abstract. It is difficult to seek an optimization design for the falling object protective structure (FOPS) of wheel loader cab. Focusing on this problem, we discuss the topology optimization with SIMP theory under impact condition and the designing parameters, response function and constrain conditions are confirmed. The proposed method is applied to wheel loader cab to get a topology structure. The numerical analysis indicate that the optimized design of wheel loader cab has light weight and can provide sufficient protect for the operator.

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