Development and control of autonomous, biped locomotion using efficient modeling, simulation, and optimization techniques

2004 ◽  
Author(s):  
M. Hardt ◽  
O. von Stryk ◽  
D. Wollherr ◽  
M. Buss
Keyword(s):  
Optimization Techniques ◽  
Biped Locomotion ◽  
Simulation And Optimization ◽  
Modeling Simulation ◽  
And Control ◽  
Efficient Modeling

Study on Modeling and Simulation of Digital Factory Technology in Complex Production Development

2011 ◽  
Vol 383-390 ◽  
pp. 2383-2389
Author(s):  
Shan Li ◽  
Yan En Wang ◽  
Bing Chen ◽  
Ting Yang ◽  
Qian Li Dong
Keyword(s):  
Service Oriented Architecture ◽  
Integrated Approach ◽  
Optimization Techniques ◽  
Simulation Technology ◽  
Production Engineering ◽  
Digital Factory ◽  
Simulation And Optimization ◽  
Planning And Control ◽  
Service Oriented ◽  
And Control

This paper describes an innovative systematic approach to factory automation. Northwestern Polytechnical University developed an Enterprise-level Digital fActory and its Simulation Platform, NPU-EDASP that adopted service-oriented architecture methodology to design and develop this software. In particular, it specifies the simulation technology within the NPU-EDASP platform to bridge the gape exits among products and production manufacturing process. In an advanced stage, simulation technology can be applied in the NPU-EDASP to enhance the operative production planning and control. Further, the combination of simulation and optimization techniques will improve and optimize material flow, resource utilization and logistics in production engineering processes. A case study of a model demonstrates that the NPU-EDASP digital factory offers an integrated approach to promote the ability of production engineering.

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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