Parametric Modeling of Five Typical Cylindrical Shells

2012 ◽  
Vol 424-425 ◽  
pp. 255-259 ◽  
Author(s):  
Xiao Yang Lu ◽  
Xiao Wei Zhao ◽  
Li Li Huang ◽  
Zheng Hui Li ◽  
Zhi Dan Wang ◽  
...  
Keyword(s):  
Cylindrical Shell ◽  
Parametric Design ◽  
Internal Force ◽  
Parametric Modeling ◽  
Shell Structures ◽  
Design Language ◽  
System A ◽  
Cylindrical Coordinate ◽  
High Length ◽  
Ansys Parametric Design Language

Based on the geometric characteristics of five typical cylindrical shell structures, a method of the node generation and element connection of the reticulated shell is established in the cylindrical coordinate system. A macro program is designed by using its own Parametric Design Language APDL (ANSYS Parametric Design Language) based on the platform of ANSYS. This five typical cylindrical shell modeling are realized under given parametric conditions such as span, rise high, length and number of grids. It is proved by several examples that this method is simple, efficient and possible. It can be easily used to analysis the internal force and optimize design in shell structures

Parametric Modeling of Six Typical Double Primary Ribs Reticulated Dome

2012 ◽  
Vol 166-169 ◽  
pp. 747-751
Author(s):  
Xiao Yang Lu ◽  
Wang Chao ◽  
Shi Ying Chen ◽  
Zhi Dan Wang
Keyword(s):  
Radial Direction ◽  
Parametric Design ◽  
Internal Force ◽  
Parametric Modeling ◽  
Shell Structures ◽  
Optimized Design ◽  
Spherical Coordinate ◽  
System A ◽  
Reticulated Domes ◽  
Ansys Parametric Design Language

Based on the structure features of double primary ribs reticulated domes, a method for node generation and element connection of six typical double primary ribs reticulated domes was produced in spherical coordinate system. A macro program was designed by using ANSYS Parametric Design Language (APDL). This six typical double primary ribs reticulated dome modeling was realized under given parameters such as span, rise high, double primary ribs thickness, grid number in circular and radial direction. It is proved by several examples that this method is simple, efficient and possible. It can be easily used to analyze the internal force and optimized design in shell structures.

Parametric Modeling of Six Typical Reticulated Dome

2012 ◽  
Vol 424-425 ◽  
pp. 270-275 ◽  
Author(s):  
Xiao Yang Lu ◽  
Xiao Wei Zhao ◽  
Li Li Huang ◽  
Ling Biao Kong ◽  
Chao Wang
Keyword(s):  
Coordinate System ◽  
Radial Direction ◽  
Parametric Design ◽  
Internal Force ◽  
Parametric Modeling ◽  
Shell Structures ◽  
Spherical Coordinate ◽  
System A ◽  
Reticulated Domes ◽  
Ansys Parametric Design Language

Based on the structure features of reticulated domes, a method for node generation and element connection of six typical reticulated domes is established in spherical coordinate system. A macro program is designed by using ANSYS Parametric Design Language (APDL). This six typical reticulated dome modeling are realized under given parameters such as span, rise high, grid number in circular and radial direction. It is proved by several examples that this method is simple, efficient and possible. It can be easily used to analysis the internal force and optimize design in shell structures

Parametric Modeling of Six Typical Double Reticulated Dome

2012 ◽  
Vol 193-194 ◽  
pp. 1265-1269
Author(s):  
Xiao Yang Lu ◽  
Qing Wang ◽  
Xiao Wei Zhao ◽  
Kui Li ◽  
Chao Wang
Keyword(s):  
Radial Direction ◽  
Parametric Design ◽  
Internal Force ◽  
Parametric Modeling ◽  
Shell Structures ◽  
Optimized Design ◽  
Design Language ◽  
Reticulated Domes ◽  
Ansys Parametric Design Language

Based on the structure features of double reticulated domes, a method for node generation and element connection of six typical double reticulated domes was produced. A macro program was designed by using ANSYS Parametric Design Language (APDL). The six typical double reticulated dome modeling was produced under given parameters such as span, rise high, double thickness, grid number in circular and radial direction. It is proved by several examples that this method is simple, efficient and possible. It can be easily used to analyze the internal force and optimized design in shell structures.

Five Developed Cylinder Reticulated Shell ANSYS Parametric Modelings

2012 ◽  
Vol 166-169 ◽  
pp. 743-746
Author(s):  
Xiao Yang Lu ◽  
Zhi Dan Wang ◽  
Xiao Wei Zhao ◽  
Wang Chao
Keyword(s):  
Cylindrical Shell ◽  
Coordinate System ◽  
Parametric Design ◽  
Parametric Modeling ◽  
Force Analysis ◽  
Ansys Software ◽  
Cylindrical Coordinate ◽  
Different Types ◽  
Optimizing Design ◽  
The Given

Based on the geometric characteristics of developed cylinder shell, five methods of node generation and element connection were proposed in the cylindrical coordinate system. The corresponding macro programmers were made by means of ANSYS software parametric design language. Five developed cylindrical shell parametric modelings were achieved under the conditions of the given shell types, span, vector height, length, the grid number of length wise direction and cross wise direction. Applied examples show that this parametric modeling method and programmers are simple, efficient and useful, which facilitate the force analysis and optimizing design under different types and parameter by means of ANSYS software.

Parametric Design of Six Typical Semi-Outdoor Reticulated Domes

2013 ◽  
Vol 470 ◽  
pp. 433-436
Author(s):  
Xiao Yang Lu ◽  
Ning Hong ◽  
Shi Ying Chen ◽  
Ya Ruo Chen
Keyword(s):  
Parametric Design ◽  
Parametric Modeling ◽  
Modeling Method ◽  
Geometric Parameters ◽  
Shell Structures ◽  
Force Analysis ◽  
Optimization Scheme ◽  
Reticulated Domes ◽  
Lattice Shells ◽  
Ansys Parametric Design Language

According to the rules of six typical spherical reticulated shell nodes, the modeling method and the design macro program is developed for the nodes and the bars of six typical semi-outdoor spherical reticulated shell structures by using the ANSYS parametric design language APDL, so as to achieve the parametric design of six typical semi-outdoor spherical reticulated shells. The modeling design examples indicate that it's convenient to achieve the parametric modeling and design of semi-outdoor shell with given span S, rise high F, number of hoop symmetry areas kn, radial node cycles of whole structure nx and the upper removed laps ns, which provides big convenience for the force analysis and the optimization scheme comparison of semi-outdoor spherical lattice shells with varied types and geometric parameters.

Study on Optimal Design of Flywheel Structure Based on APDL

2013 ◽  
Vol 321-324 ◽  
pp. 1812-1816
Author(s):  
Zheng Jia Wu ◽  
Pan Lin ◽  
Yu Qiong Zhou
Keyword(s):  
Optimal Design ◽  
Optimization Design ◽  
Parametric Design ◽  
Maximum Load ◽  
Parametric Modeling ◽  
Design Language ◽  
Ansys Parametric Design Language

Taking the typical axisymmetric flywheel as an example in this paper, use APDL (ANSYS parametric design language) to analyze the stress of the flywheel stucture under the maximum load through parametric modeling, parametric meshing, parametric solving and parametric postprocessing, etc. Optimize the flywheel structure through reconstruction and reanalysis with the APDL, the optimizition result shows that APDL is a good solution for the optimization design of the flywheel structure.

Regular Hexagonal Grid Single-Layer Cylindrical Latticed Shell Parametric Design

2014 ◽  
Vol 518 ◽  
pp. 231-235
Author(s):  
Qiao Sha Wang ◽  
Xiao Yang Lu ◽  
Shi Ying Chen
Keyword(s):  
Shell Structure ◽  
Optimization Design ◽  
Building Materials ◽  
Parametric Design ◽  
Single Layer ◽  
Honeycomb Structure ◽  
Hexagonal Grid ◽  
Design Language ◽  
Finite Element Software ◽  
Ansys Parametric Design Language

Hexagonal grid cylindrical latticed shell structure is proposed, due to honeycomb structure (although the hexagon structure) is the most effective structure on save the building materials. As a result of the shell structure always with numerous bars, the distribution of internal force and the design of bars often rely on many parameters, likes the span of the structure, the rise-span ratio of the structure, the size of mesh etc., the large scaled finite element software ANSYS parametric design language ANSYS Parametric Design Language (APDL) be used to establish the model of hexagonal grid single-layer cylindrical reticulated shell. The optimization design also was done to found whether the model was a feasibility one. The analysis process shows that the parametric design method provides great convenience for the design of the structure.

Research on Increasing Hob Tip Fillet Radius to Decrease Addendum Modification Coefficient

2012 ◽  
Vol 271-272 ◽  
pp. 1105-1109
Author(s):  
Xiang Fei Zhao ◽  
Yu Lin ◽  
Hong Qi Liu ◽  
Jie Zhang
Keyword(s):  
Finite Element ◽  
Virtual Environment ◽  
Bending Strength ◽  
Parametric Design ◽  
Finite Element Models ◽  
Contact Ratio ◽  
Design Language ◽  
Fillet Radius ◽  
Modification Method ◽  
Ansys Parametric Design Language

Reasonable design of hob tip fillet and calculation of modification coefficients were researched to avoid undercutting in this paper. The undercut gears were generated in the virtual environment based on Pro / E software. Meanwhile, parametric finite element models of undercut gear, ordinary modified gear generated by standard hob and modified gear generated by hob with tip fillet radius increased,were founded by APDL (ANSYS Parametric Design Language).The results show that the minimum modification coefficients chosen to avoid undercutting by traditional modification method may not meet the requirements of contact ratio or addendum thickness.While through reasonable design of hob tip fillet, modification coefficients calculated not only avoid undercutting to improve the tooth bending strength but also meet the requirements of contact ratio ε>1.2 and addendum thickness δ>0.25m (module) .

Adaptive hybrid optimization of hydrodynamic deep drawing with radial pressure process by combination of parametric design and simulated annealing techniques

2016 ◽  
Vol 231 (24) ◽  
pp. 4564-4575 ◽  
Author(s):  
Abbas Hashemi ◽  
Mohammad Hoseinpour Gollo ◽  
SM Hossein Seyedkashi ◽  
Ali Pourkamali Anaraki
Keyword(s):  
Finite Element ◽  
Simulated Annealing ◽  
Regression Model ◽  
Deep Drawing ◽  
Parametric Design ◽  
Radial Pressure ◽  
Design Language ◽  
Hydrodynamic Deep Drawing ◽  
Definition Of ◽  
Ansys Parametric Design Language

An adaptive hybrid simulated annealing technique with ANSYS parametric design language is developed to optimize hydrodynamic deep drawing assisted by radial pressure process. This work aims to determine an optimal pressure path by redefinition of simulated annealing parameters and creating an adaptive finite element code using ANSYS parametric design language for any cylindrical, conical, and conical–cylindrical cups. The simulated annealing algorithm is developed adaptively with respect to hydrodynamic deep drawing with radial pressure process to link with ANSYS parametric design language code using a script in MATLAB. Parametric definition of process parameters enables the optimization algorithm to change the finite element model configuration in each iteration. Defective product is detected by definition of two failure criteria based on thinning and wrinkling occurrence during the optimization process. The proposed optimization method is employed in fractional factorial design of experiment to investigate the effective parameters on final product quality. Also, a regression model is derived to predict the final product quality based on the maximum thinning percentage under the optimal pressure path. Reliability of the optimization procedure and regression model is validated by experiments.

Equilateral Triangle Grid Cylindrical Shell Parametric Design

2014 ◽  
Vol 670-671 ◽  
pp. 634-637
Author(s):  
Xiao Yang Lu ◽  
Qiao Sha Wang ◽  
Xiao Wei Zhao ◽  
Shao Bo Lu ◽  
Feng Cheng Liu ◽  
...  
Keyword(s):  
Cylindrical Shell ◽  
Equilateral Triangle ◽  
Optimization Design ◽  
Parametric Design ◽  
Cylindrical Shells ◽  
Force Analysis ◽  
Ansys Software ◽  
Design Language ◽  
Lattice Shell ◽  
The Given

By using ANSYS software parameter of design language APDL the parametric design macro program of two types of equilateral triangle cylindrical lattice shell are given with the given parameters of the span S, the length L, the rise F, the number of lattice in the span direction the model of equilateral triangle cylindrical lattice shell would be obtain easily. Thus offer convenience for force analysis and optimization design about this structure. The force analysis of the two type equilateral triangle cylindrical lattice shell is done. By contrast with the five typical cylindrical shells, the two type equilateral triangle cylindrical lattice shell has good rigidity and strength, and has application value in practice engineering.

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