Shipping Transfer System: Modeling, simulation and optimization

2008 ◽  
Author(s):  
Ruiping Hu ◽  
Xiujun Li ◽  
Ming Li
Keyword(s):  
System Modeling ◽  
Transfer System ◽  
Simulation And Optimization ◽  
Modeling Simulation

CoSMSOL: Complex system modeling, simulation and optimization language

2017 ◽  
Vol 08 (02) ◽  
pp. 1741002 ◽  
Author(s):  
Bo Hu Li ◽  
Xiao Song ◽  
Lin Zhang ◽  
Jing Liu ◽  
Peng Chi ◽  
...  
Keyword(s):  
Complex System ◽  
System Modeling ◽  
Continuous System ◽  
Agent Based ◽  
Simulation And Optimization ◽  
Implementation Processes ◽  
Modeling Simulation ◽  
Simulation Language ◽  
Intelligent Optimization Algorithms ◽  
Complex System Modeling

Complex System Modeling, Simulation and Optimization Language (CoSMSOL) is problem-oriented and designed to run on multi-core computers. This paper provides the system environment of CoSMSOL and proposes the modeling methods of complex system, language text specification, function library, algorithm library, parallel simulation algorithms and intelligent optimization algorithms which support continuous system, discrete system and agent systems. Also, we developed a simulation language compiler of CoSMSOL, which is employed in two case studies generating a multi-entity war gaming system and an aerodynamic spacecraft model. The two cases illustrate main functions and implementation processes of CoSMSOL. The results validate that CoSMSOL is useful to model agent-based system and aerospace system.

scholarly journals Modeling, Simulation and Optimization of Piezoelectric Bimorph Transducer for Broadband Vibration Energy Harvesting

2017 ◽  
Vol 6 (4) ◽  
pp. 5 ◽  
Author(s):  
Nan Chen ◽  
Vishwas Bedekar
Keyword(s):  
Energy Harvester ◽  
Piezoelectric Properties ◽  
Vibration Energy ◽  
Piezoelectric Bimorph ◽  
Vibration Energy Harvesting ◽  
Compliance Matrix ◽  
Simulation And Optimization ◽  
Power Characteristics ◽  
Modeling Simulation ◽  
Length Width

We demonstrate the detailed analysis for conversion of piezoelectric properties into compliance matrix and simulate a series bimorph configuration for vibration based energy generation. Commercially available software COMSOL Multiphysics was used to apply boundary conditions for optimization of geometric parameters such as length, width and thickness of piezoelectric layer to study voltage and power characteristics of the harvester. The resulting energy harvester was found to generate 1.73 mW at 53.4 Hz across a 3MW load with an energy density of 13.08mJ/cm3. We also investigated feasibility of this model by comparing it with existing experimental data of known piezoelectric ceramic compositions and found good correlation between the two.

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