An Optimization and its Realization of Mast Crane Based on APDL

2011 ◽  
Vol 199-200 ◽  
pp. 1414-1418
Author(s):  
Shi Jun Song ◽  
Lei Li ◽  
Ji Yong Wang ◽  
Lian Yu Song
Keyword(s):  
Optimization Model ◽  
Optimization Design ◽  
Parametric Optimization ◽  
Parametric Design ◽  
Steel Structure ◽  
Design Standards ◽  
Element Analysis ◽  
Building Process ◽  
Standard Design ◽  
Ansys Parametric Design Language

There is currently no relevant national design standards about mast crane, so there are many of its non-standard design and a variety of forms and no attention is payed to the rationality of the design. Therefore, optimal design of the mast crane steel structure has a significant meaning for design technology of mast crane. This paper refers to a kind of parametric optimization model based on Ansys OPT, combined with finite element analysis (FEA) and stability theory. The building process and the program structure of the parametric optimization model is introduced. Corresponding program is developed by using ansys parametric design language (APDL) , which extract some parametes from FEA results, such as weight and axial force, etc, and rapid optimization design of mast crane is realized. It has a referenced meaning for optimization design of steel structure of all types of mast crane.

Finite element analysis and design optimization of a non-circular sandwich composite deep submarine pressure hull

2020 ◽  
Vol 62 (10) ◽  
pp. 1025-1032
Author(s):  
Mahmoud Helal ◽  
Elsayed Fathallah
Keyword(s):  
Finite Element Analysis ◽  
Structural Design ◽  
Parametric Design ◽  
Failure Criteria ◽  
Sensitivity Analyses ◽  
Sandwich Composite ◽  
Element Analysis ◽  
Analysis And Design ◽  
Diving Depth ◽  
Ansys Parametric Design Language

Abstract Diving depth is the criteria for designing the submarine pressure hull meant to achieve a definite collapse depth. In this study, a methodology to optimize a sandwich composite deep pressure hull is presented. Buoyancy factor (BF) minimization is considered as an objective function. The optimization process is achieved by ANSYS parametric design language (APDL). Composites failure criteria and structural stability are considered as constraints. Additionally, sensitivity analyses were conducted to analyze the effects of geometric parameters on optimal structural design. The results showed that, the utilization of a sandwich composite pressure hull for a deep submarine at extreme depths is not safe. Additionally, the results propose that the submarine designed should be able to operate at a maximum diving depth of up to 7500 m.

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.

Rapid Development Platform of NC Turrets Based on the Construction of B/S

2014 ◽  
Vol 685 ◽  
pp. 684-689
Author(s):  
Xiang Fu ◽  
Xi Lu ◽  
Jing Wen
Keyword(s):  
Reliability Analysis ◽  
Data Storage ◽  
Optimization Design ◽  
Parametric Design ◽  
Rapid Development ◽  
Element Analysis ◽  
Development Platform ◽  
Structural Differences ◽  
Cae Analysis ◽  
Storage Structures

NC Turrets include Servo Turrets and Power Turrets. The structural differences of them are addressed. In this paper, data storage structures of turret parts, turret automatically assembled, finite element analysis, optimization design and 3D model browse in the WEB are studied. Based on the construction of B/S, a NC Turret rapid development platform which is composed by Network user tier, WEB business tier and Data tier is constructed. The platform integrates a CAE analysis module based on ANSYS, a parametric design module based on SolidWorks and a reliability analysis module based on MATLAB. The Rapid Development Platform can perform the new product design and reliability analysis, and an optimal develpoment design of NC Turrets can be realized rapidly and efficiently.

Wind Load Analysis and the Structure Optimization Design of the Steel Structures with ANSYS

2010 ◽  
Vol 37-38 ◽  
pp. 1643-1646
Author(s):  
Zhao Xin Meng ◽  
Jian Xin Zhao ◽  
Shu Yang Wang ◽  
Nan Zhou
Keyword(s):  
Optimization Design ◽  
Rapid Development ◽  
Three Dimensional ◽  
Steel Structure ◽  
Steel Structures ◽  
Clean Energy ◽  
Wind Load ◽  
Three Dimensional Model ◽  
Design Standards ◽  
Bio Oil

In recent years, the bio-oil, as a new kind of clean energy, has been paid with more attentions and has been in rapid development. Meanwhile, the design and research of the bio-oil equipment also has made a great progress. This paper presented the research of the main unit installed steel structure which was with the 3000t yearly capacity. It analyzed and researched the structure and load characteristics of the bio-oil main unit installed steel structure. According to the related research theory and design standards, by using software ANSYS establish the three-dimensional model of the main unit installed steel structure. The paper also analyzed and calculated the wind load. The model structure has been optimized on the foundation of the analyzing preliminary model foundation. The stability of the equipment has been enhanced.

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.

Reliability Analysis of the Diesel Engine Crankshaft Based on APDL Language in ANSYS

2011 ◽  
Vol 374-377 ◽  
pp. 1916-1919
Author(s):  
Jian Xiao Zheng ◽  
Bin Li ◽  
Si Cong Yuan
Keyword(s):  
Finite Element ◽  
Diesel Engine ◽  
Reliability Analysis ◽  
Structure Analysis ◽  
Optimization Design ◽  
Parametric Design ◽  
Three Dimensional ◽  
Element Analysis ◽  
Object Variable ◽  
Engine Crankshaft

The overall three-dimensional parametric model of the crankshaft has been completed based on the ANSYS Parametric Design Language (APDL) from the software of ANSYS and by combing the structure analysis capability with the statistical analysis capability of its PDS module, the reliability analysis of Monte Carlo finite element method (FEM) will be achieved according to the finite element analysis technology and the reliability basic principles. The 4110 diesel engine crankshaft was taken as an example, the parametric design will be introduced into the finite element structure analysis to implement the rapid adjustment of the structure parameter, produce the anatomic model automatically and complete the process of the structural analysis and reliability analysis. The process that the reliability analysis of the crankshaft has been realized will be described in detail. According to the results of probability analysis, the sensitivity relation between the design variable and the object variable will be obtained and at the same time the maximum stress probability distribution function of these dangerous parts and the main affective factor for object variable will be given, which will offer the useful data for the structure reliability optimization design.

The Finite Element Analysis and Optimization for the Steel Structure of Gantry Bucket Wheel Stacker-Reclaimer

2011 ◽  
Vol 105-107 ◽  
pp. 615-618 ◽  
Author(s):  
Zhen Ping Zhou ◽  
Di Jiang ◽  
Jia Liang Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Calculation Result ◽  
Optimization Design ◽  
Working Condition ◽  
High Stress ◽  
Steel Structure ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Strength And Stiffness

Gantry bucket wheel stacker-reclaimer belongs to large complex steel structure. Once it is instability at the working time that will make a large accident. So we have to calculate its strength and stiffness. But its connection and the working condition are very complex. And the size of the model is so large which leads to debase the calculation efficiency. This paper use Pro/E software to create the model. And use Pro/Mechanical to make a finite element analysis. Through the properly simplified the model, we can increase the calculation efficiency. During the calculation result we find that the Pulley yoke, Rigid leg and Flexible leg appear big stress areas. We will give an optimization design for the irrational place and high stress areas. So that to improve the Gantry bucket wheel stacker-reclaimer on-site safety. And provide a certain reference for the subsequent design and improvement.

Research on Weight-Reduced Optimization Design of Large Nuclear Power Low Pressure Cylinder

2017 ◽  
Author(s):  
Yifeng Hu ◽  
Xingzhu Ye ◽  
Gang Chen
Keyword(s):  
Nuclear Power ◽  
Optimization Design ◽  
Power Plants ◽  
Low Pressure ◽  
Economic Benefits ◽  
Steam Turbines ◽  
Design Standards ◽  
Element Analysis ◽  
And Performance ◽  
Stress And Deformation

Steam turbines need to be safer and more reliable when used in nuclear power plants. In order to ensure long-term reliability of nuclear power equipment, a high safety factor is usually adopted in the design of low-pressure (LP) inner casing of steam turbines. It not only leads to larger self-weight of LP outer casings and fundamental load, but also causes higher manufacturing and transportation costs. In this paper, the stress and deformation behaviors of the LP outer casings of steam turbines are first evaluated using the numerical finite element analysis. Then, two optimization design methods, size optimization and topology optimization are used to conduct the weight reduced optimization design of inner casing, in combination with the design standards, so that the structural efficiency and performance of LP inner casings are achieved. At the same time, the self-weight and related costs are also greatly reduced. This study proposes a more optimized structural design of LP inner casings of steam turbines, and it offers considerable economic benefits.

Finite Element Analysis and Topology Optimization Design for Front Platen of Injection Molding Machine

2013 ◽  
Vol 365-366 ◽  
pp. 42-46
Author(s):  
En Guang Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Topology Optimization ◽  
Injection Molding ◽  
Optimization Design ◽  
Parametric Design ◽  
Molding Machine ◽  
Element Analysis ◽  
Injection Molding Machine ◽  
Maximum Deformation

The weight of platens accounts for about 70% of the entire clamping device of injection molding machine. The reduction in the weight of platen means the reduction in the cost of injection molding machine. UG NX8.0 was adopted to conduct the parametric design, and UG NX8.0 Advanced Simulation module was adopted to conduct the finite element analysis and the topology optimization design for the front platen of injection molding machine so as to obtain the quantitative conclusions that the volume of platen is reduced and the stiffness as well as the strength is improved. The maximum deformation of platen is decreased by 6.2%, the volume is decreased by 6%, the maximum stress is decreased by 6.6% and the average displacement of all the nodes in the mold mounting plane is decreased by 9.1%. The effect of optimization is obvious.

Modal Analysis and Testing of Large-Span Space Steel Structure

2010 ◽  
Vol 154-155 ◽  
pp. 386-389
Author(s):  
Zhi Chao Tang ◽  
Zhong Jun Yin ◽  
Bing Chen ◽  
Lian Wan Zhang
Keyword(s):  
Finite Element ◽  
Modal Analysis ◽  
Optimization Design ◽  
Steel Structure ◽  
Element Model ◽  
Rotary Hearth Furnace ◽  
Hearth Furnace ◽  
Element Analysis ◽  
Large Span ◽  
Stress At Work

Large-span space steel structure, rotary hearth furnace lower ring, has dynamic stress at work caused by shock or vibration leading to the destruction of steel, so in the design of rotary hearth furnace lower ring, dynamic design is an essential part [1, 2]. Finite element analysis software ANSYS is used to build its finite element model. Modal analysis is carried on, and experimental data is compared with the calculation result, which effectively estimates the vibration characteristics and structural optimization design of the structure, and provides strong technical support for its design and manufacture[3, 4].

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