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

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.

2012 ◽  
Vol 424-425 ◽  
pp. 270-275 ◽  
Author(s):  
Xiao Yang Lu ◽  
Xiao Wei Zhao ◽  
Li Li Huang ◽  
Ling Biao Kong ◽  
Chao Wang

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


2012 ◽  
Vol 193-194 ◽  
pp. 1265-1269
Author(s):  
Xiao Yang Lu ◽  
Qing Wang ◽  
Xiao Wei Zhao ◽  
Kui Li ◽  
Chao Wang

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.


2012 ◽  
Vol 424-425 ◽  
pp. 255-259 ◽  
Author(s):  
Xiao Yang Lu ◽  
Xiao Wei Zhao ◽  
Li Li Huang ◽  
Zheng Hui Li ◽  
Zhi Dan Wang ◽  
...  

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


2013 ◽  
Vol 470 ◽  
pp. 433-436
Author(s):  
Xiao Yang Lu ◽  
Ning Hong ◽  
Shi Ying Chen ◽  
Ya Ruo Chen

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.


2013 ◽  
Vol 321-324 ◽  
pp. 1812-1816
Author(s):  
Zheng Jia Wu ◽  
Pan Lin ◽  
Yu Qiong Zhou

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.


Author(s):  
Y. Ait Ferhat ◽  
A. Boulenouar ◽  
N. Benamara ◽  
L. Benabou

The main objective of this work is to present a numerical modeling of mixed-mode fracture in isotropic functionally graded materials (FGMs), under mechanical and thermal loading conditions. In this paper, the displacement-based method, termed the generalized displacement correlation (GDC) method, is investigated for estimating stress intensity factor (SIF). Using the ANSYS Parametric Design Language (APDL), the continuous variations of the material properties are incorporated by specified parameters at the centroid of each element. This paper presents various numerical examples in which the accuracy of the present method is verified. Comparisons have been made between the SIFs predicted by the GDC method and the available reference solutions in the current literature. A good agreement is achieved between the results of the GDC method and the reference solutions.


2010 ◽  
Vol 145 ◽  
pp. 567-572
Author(s):  
Hua Ding ◽  
Zhao Jian Yang ◽  
Xue Wen Wang ◽  
Zhi Yong Ding

Based on the concept of parametric design, this paper realizes the parametric modeling and parametric finite element analysis by utilizing UG/OPEN secondary development tool and APDL module of ANSYS software respectively. This paper also achieves data sharing of CAD/CAE through compiling interface program between UG6.0 and ANSYS10.0. In addition, the remote design and analysis platform has been built by using ASP.NET technology, component technology, and database technology. We take piston-piston rod part of coal mining machine’s cutting unit as an example to verify the system. Meanwhile, it proves system can effectively shorten design and analysis cycle time, and reduce workload of designer. Therefore, this software has potential application value in engineering.


2021 ◽  
pp. 1-13
Author(s):  
Zhou Yanyan

The motion characteristics of particulate matter are very wonderful. With the development of science and technology, the motion of granular materials has gradually become a hot topic, which has attracted the attention of many scientists and experts. The research of granular matter has gradually become specialized and systematic. With the gradual improvement of the system, a frontier research field particle physics has been formed. Under the combined action of external force and internal force, particles can reflect the properties of fluid, but in the process of flow, it will show different size separation phenomenon from the fluid. The problem of particle separation was formally introduced into the field of physics in 1987. In reality, the existence of particles is not unique. In view of this, the author makes a systematic research and Analysis on the behavior and factors of vibration.


2019 ◽  
Vol 19 (1) ◽  
pp. 86-96
Author(s):  
R Maheswaran ◽  
V Srinivasan

Abstract The influence of Modal–cotton (MC) fibre blend ratio and ring frame machine parameters such as front top roller loading and break draft on the blended yarn properties has been studied. Compact MC blended yarn samples of 14.75 tex with three different MC fibre blend ratio has been produced in a LR 6 ring spinning frame fitted with Suessen Compact drafting system. A robust design optimisation to minimise the variations of the output yarn properties such as blended yarn tenacity, yarn unevenness and hairiness caused because of the variations in the material as well as machine setting parameters is achieved through the Taguchi parametric design approach. It is found that the maximum compact MC blended yarn tenacity is 23.76 g/tex, which is influenced very much by MC fibre blend ratio but meagrely by top roller loading and break draft. Similarly, the minimum 9.54 U% and 3.59 hairiness index are achieved with 100:0 and 70:30 MC fibre blend ratio, respectively, at 23-kg top roller loading. Statistical ANOVA analysis is performed on the results and optimum values are obtained within the 95% confidential level through confirmation experiments.


Author(s):  
Mukui Saxena ◽  
Rohinton K. Irani

Abstract This paper describes a new, and unique, system for design and analysis of a family of parts with a specific focus on gas turbine nozzles. The system, built on the tenets of knowledge-based engineering (KBE) within an object-oriented framework, supports the notion of scalable products that can be resized through reparametrization. The KBE system for the parametric design of nozzles has been integrated with a Topology and Geometry Utility System (TAGUS) and geometry-based mesh generators (QUADTREE and EXTREME) to develop a turnkey system. The resulting system is shown to help reduce the design cycle time and to increase engineering productivity by representing design and manufacturing information as part of the complete product definition.


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