Optimal Design Technique of Mechanical System Based on Structural Optimization of Continuum

2014 ◽  
Vol 22 (1) ◽  
pp. 27-32
Author(s):  
Shogo NAKASUMI
Keyword(s):  
Optimal Design ◽  
Structural Optimization ◽  
Mechanical System ◽  
Design Technique

Multi-Object Multi-Discipline Probabilistic Design of High-Pressure Turbine Blade-Tip Radial Running Clearance

2013 ◽  
Vol 572 ◽  
pp. 551-554
Author(s):  
Wen Zhong Tang ◽  
Cheng Wei Fei ◽  
Guang Chen Bai
Keyword(s):  
Mathematical Model ◽  
High Pressure ◽  
Optimal Design ◽  
Mechanical System ◽  
High Accuracy ◽  
Probabilistic Design ◽  
High Pressure Turbine ◽  
Surface Method ◽  
Blade Tip ◽  
The Mathematical Model

For the probabilistic design of high-pressure turbine (HPT) blade-tip radial running clearance (BTRRC), a distributed collaborative response surface method (DCRSM) was proposed, and the mathematical model of DCRSM was established. From the BTRRC probabilistic design based on DCRSM, the static clearance δ=1.865 mm is demonstrated to be optimal for the BTRRC design considering aeroengine reliability and efficiency. Meanwhile, DCRSM is proved to be of high accuracy and efficiency in the BTRRC probabilistic design. The present study offers an effective way for HPT BTRRC dynamic probabilistic design and provides also a promising method for the further probabilistic optimal design of complex mechanical system.

Lightweight design for windlass base frame using optimal design technique

2013 ◽  
Vol 37 (5) ◽  
pp. 477-483
Author(s):  
Ju-Han Songr ◽  
Min-Hyuk Pack ◽  
Han-Bin Kang ◽  
In-Seok Pack ◽  
Dong-Wook Lee ◽  
...  
Keyword(s):  
Optimal Design ◽  
Lightweight Design ◽  
Design Technique

Optimal design technique for waveguide device

1996 ◽  
Vol 32 (3) ◽  
pp. 1250-1253 ◽  
Author(s):  
Juno Kim ◽  
Hong-Bae Lee ◽  
Hyun Kyo Jung ◽  
Song-Yop Hahn ◽  
Changyul Cheon ◽  
...  
Keyword(s):  
Optimal Design ◽  
Design Technique ◽  
Waveguide Device

An optimal design technique for coil configurations in iron-shielded MRI magnets

1994 ◽  
Vol 30 (4) ◽  
pp. 2352-2355 ◽  
Author(s):  
M. Kitamura ◽  
S. Kakukawa ◽  
K. Mori ◽  
T. Tominaka
Keyword(s):  
Optimal Design ◽  
Design Technique

Fuzzy Based Optimization of Thrust Force and Torque during Drilling of Natural Hybrid Composites

2015 ◽  
Vol 787 ◽  
pp. 265-269 ◽  
Author(s):  
R. Vinayagamoorthy ◽  
N. Rajeswari ◽  
S. Sivanarasimha ◽  
K. Balasubramanian
Keyword(s):  
Optimal Design ◽  
Vinyl Ester ◽  
Thrust Force ◽  
Hybrid Composites ◽  
Natural Fibers ◽  
Fuzzy Model ◽  
Natural Hybrid ◽  
Design Technique ◽  
Synthetic Fibers ◽  
Confirmatory Trials

This investigation was done to study machinability during drilling on sandwichlaminates. Vetiver and jute were used as natural fibers and glass was used as synthetic fibers in vinyl ester matrixin the form oflaminatesby varying the fiber content in each laminate.The laminateswere drilled during which spindle speed, spindle feed rate, tool point angle and sample laminate weremodified using D-optimal design technique. During drilling of each hole, thrust force impressed and torque developedwere noted as outputs.The outputswere optimized to observe best drilling conditions.A fuzzy model was created and its predictions for trialconditionswere noted. A comparison between trial values, regression values and fuzzy values was made. Confirmatory trialswere madefor optimumset of runs and outputswere again noted.The percentage of error between the model, confirmatory trials and fuzzy were found to be meagre and hence concluded that the optimization was satisfactory.

Improved Genetic Algorithms Based Optimal Design of The Shuangji River Aqueduct

2011 ◽  
Vol 201-203 ◽  
pp. 1288-1291
Author(s):  
Xin Li Bai ◽  
Wei Yu ◽  
Dan Fei Wang ◽  
Yuan Yuan Fan
Keyword(s):  
Genetic Algorithm ◽  
Optimal Design ◽  
Structural Optimization ◽  
Large Scale ◽  
Hybrid Genetic Algorithm ◽  
Computer Software ◽  
Search Method ◽  
Discrete Variables ◽  
Original Design ◽  
Design Plan

The simple genetic algorithm (SGA) is taken as the global search method, and the traditional direct search method for mixed-discrete variables as the local search method. The improved (hybrid) genetic algorithm (IGA) is obtained by improving the SGA. And through the introduction of penalty constraints, the problem dealing with the constraints in GA is successfully resolved. A mathematical model for structural optimization of aqueduct is established, and computer software is developed for structural optimization of large-scale aqueduct based on IGA. Using this program, the Shuangji River aqueduct is optimized and Rectangle-sectioned aqueduct design plan is obtained. Compared with the original design plan, optimal design is very economical and was adopted by Design Institute.

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