scholarly journals Topological Design of a Mortar Base Plate under Impact Loads

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Fengfeng Wang ◽  
Guolai Yang
Keyword(s):  
Topology Optimization ◽  
Optimization Design ◽  
Base Plate ◽  
Element Model ◽  
Variable Density ◽  
Topological Optimization ◽  
Force Transmission ◽  
Maximum Deformation ◽  
Topological Design ◽  
Quality Constraint

In this work, the topology optimization of a mortar base plate is analysed under impact loading conditions. Usually, in this case, only ordinary topology optimization under volume constraints is considered. However, to reduce the quality of the mortar base plate and facilitate engineering applications, the topological optimization problem of the continuum of the base plate under the engineering and quality constraint is considered. A finite element model has been established and verified by testing for the mortar base plate. The variable density method was used to obtain the topological optimization results of the base plate based on the force transmission path, and then the structure was reconstructed. The mass of the optimization model of the base plate is 12.78% lower than that of the original model. In comparison with the original base plate before optimization, the results show that the maximum deformation and stress of the base plate decreased by 16.85% and 35.52%, respectively. Also, the firing stability of the mortar meets requirements, which not only meet the design requirement but also provide a reference for the performance improvement and structural optimization design of the base plate.

The Topological Optimization Design of Cross Beams Structure of Shaped Stone Turning-Milling CNC (HTM50200)

2013 ◽  
Vol 694-697 ◽  
pp. 2725-2728
Author(s):  
Xuan Mu ◽  
Ke Zhang ◽  
De Hong Zhao ◽  
Yu Hou Wu
Keyword(s):  
Topology Optimization ◽  
Machine Tools ◽  
Optimization Design ◽  
Lightweight Design ◽  
Optimization Method ◽  
Production Costs ◽  
Topological Optimization ◽  
Maximum Deformation ◽  
Machining Center ◽  
Traditional Structure

To reduce the overall mass of the machine tools, this paper made the structural lightweight design to crossbeams of the HTM series gantry machine by topology optimization. The topology optimization mathematical model was built by taking the quality as the constraint, overall stiffness to the maximum (complicance to the minimum) as the design goals. It also took HTM50200 Turning Milling Center as an example, put forward an asymmetric layout structure of auxiliary hole according to the optimization results by numerical simulation and calculation of ANSYS. By verified, the mass of the structure was 2.76% lower than traditional structure, and the maximum deformation decreased by 16.07%. By applying the topology optimization method to the design process of the HTM series machining center, the utilization of materials will be improved and the production costs will be reduced.

Optimization Design of Loader Engine Stents Based on ANSYS

2012 ◽  
Vol 590 ◽  
pp. 446-450
Author(s):  
Yong Hai Wu ◽  
Feng Wang
Keyword(s):  
Finite Element ◽  
Optimization Design ◽  
Element Model ◽  
Variable Density ◽  
Topological Optimization ◽  
Structure Model ◽  
Stent Design ◽  
State Variables ◽  
Scaffold Materials ◽  
Stress And Deformation

Seeking the best layout engine scaffold materials is always the focus of the stent design personnel stent . This object of research in this article is the engine stent of a certain loader. the geometric structure model is created by Solidworks. On this basis, finite element model is created in ANSYS. Structure of stent is optimized topologically by using variable density of topological optimization algorithm in which bracket stiffness is been as the optimization objective and reduce the materials quality is been as the state variables. And stent is modeled secondly by using gotten the most optimal topological model. The stress and deformation of the improved stent of engine increased. But weight of stents is reduced by 8.7%.

Topology Optimization Design of High Pressure Storage Tank Structure

2012 ◽  
Vol 430-432 ◽  
pp. 828-833
Author(s):  
Qiu Sheng Ma ◽  
Yi Cai ◽  
Dong Xing Tian
Keyword(s):  
Finite Element ◽  
High Pressure ◽  
Topology Optimization ◽  
Storage Tank ◽  
Optimization Design ◽  
Influence Factors ◽  
Element Model ◽  
Design Variables ◽  
Calculation Results ◽  
Pressure Storage

In this paper, based on ANSYS the topology optimization design for high pressure storage tank was studied by the means of the finite element structural analysis and optimization. the finite element model for optimization design was established. The design variables influence factors and rules on the optimization results are summarized. according to the calculation results the optimal design result for tank is determined considering the manufacturing and processing. The calculation results show that the method is effective in optimization design and provide the basis to further design high pressure tank.

Topology optimization design for compliant gripper based on the variable density method

2015 ◽  
Author(s):  
Yu Hou ◽  
Yan-Xia Guo ◽  
Jie Luo ◽  
Yu Duan
Keyword(s):  
Topology Optimization ◽  
Optimization Design ◽  
Variable Density ◽  
Density Method

Topology Optimization in Support of Spaceborne Device Based on Variable Density Method

2013 ◽  
Vol 568 ◽  
pp. 109-113
Author(s):  
Bing Hui Wu ◽  
Bao Jun Pang ◽  
Zong Quan Deng
Keyword(s):  
Topology Optimization ◽  
Base Plate ◽  
Basic Structure ◽  
Variable Density ◽  
Design Stage ◽  
Finite Model ◽  
Thin Wall ◽  
Density Method ◽  
Before And After ◽  
Optimization Function

Support is not load bearing components, but also carrier of other component. To reduce the valid load, mass of the support should be low down under the condition of enough stiffness and strength. Topology optimization is employed here to solve the problem. The finite model must be built up according to the basic structure of analysis object in topology optimization. The supports are typical box-style part with thin-wall. Thus, solid model is adopted in ANSYS, and the element shell93 is employed here. Definition of optimization function based on linear-static analysis was employed here. Take maximum flexibility as the constrain conditions of the structure. And the optimality criterion (OC) method was adapted to the problem due to it is suitable for the problem which target is volume. Define the base plate, face and back of the support as the topology area separately. Main part of support is optimization with the variable density method. The results before and after the optimization are compared. When the topology form is unknown, the best topology relation of the structure in the initiate design stage of the whole product has very important meanings.

Stress and Modal Analysis of Flat Spiral Spring in Elastic Energy Storage Equipment

2011 ◽  
Vol 121-126 ◽  
pp. 1754-1758
Author(s):  
Wei Duan ◽  
Heng Chang Feng
Keyword(s):  
Power Generation ◽  
Energy Storage ◽  
Modal Analysis ◽  
Optimization Design ◽  
Element Model ◽  
Strong Basis ◽  
Maximum Deformation ◽  
Spiral Spring ◽  
Modes Of Vibration ◽  
Flat Spiral

The energy storage technology is playing an important role in improving power grid stability. Aiming to the randomness and intermittent characteristics of wind power generation, the paper proposed a scheme of mechanical elastic storage energy and power generation system based on flat spiral spring. The flat spiral spring, which is the core component in the system, is selected as the research object, and the mechanical model and the finite element model is created. The geometric parameters of spring are determined. The maximum deformation and the stress distribution of spring are obtained. Moreover, the modal analysis of spring is carried out and the natural frequencies and modes of vibration of first 20 orders are obtained. The relationship between the natural frequency and deformation is also analyzed. All the results in this paper provide a strong basis for the optimization design of spring and the calculation of energy density.

Application of Topological Optimization on Aluminum Alloy Automobile Wheel Designing

2012 ◽  
Vol 562-564 ◽  
pp. 705-708
Author(s):  
Zhi Jun Zhang ◽  
Hong Lei Jia ◽  
Ji Yu Sun ◽  
Ming Ming Wang
Keyword(s):  
Topology Optimization ◽  
Lightweight Design ◽  
Optimization Method ◽  
Variable Density ◽  
Topological Optimization ◽  
Optimal Topology ◽  
Element Analysis ◽  
Material Interpolation ◽  
Strength And Stiffness

Topology optimization method based on variable density and the minimum compliance objective function was used on designing the wheel spokes. SIMP material interpolation model was established to compensate these deficiencies of variable density method. Considering manufacturing process and stress distribution, five bolt wheels was chose to topology optimization. The percentage of material removal of the optimal topology 40% was reasonable. Finite element analysis was used to test the strength and stiffness of the structure of the wheel, the result meets the requirements after wheel topology optimization, and reduces the quality of wheels to 7.76kg, achieve the goals of lightweight design.

Optimization Design of CTP Imaging Drum Based on ANSYS

2011 ◽  
Vol 217-218 ◽  
pp. 1781-1788 ◽  
Author(s):  
Jie Fang Xing ◽  
Xiao Yu Ni ◽  
Jie Zhang ◽  
Du Juan Chen
Keyword(s):  
Finite Element ◽  
Optimization Model ◽  
Optimization Design ◽  
Geometric Model ◽  
Element Model ◽  
Internal Diameter ◽  
External Diameter ◽  
Factors Affecting ◽  
Maximum Deformation ◽  
Design Variables

In the imaging process, the deformation of the plate caused by the structure of the drum, finally affecting the quality of the plate, we analyze and optimize the structure of the drum using the finite element method. Selecting the larger three factors affecting the plate deformation as the design variables, and taking minimizing the maximum deformation of the plate as the objective function, we establish the optimization model of the structure of the drum. We use the APDL parametrization language to create the geometric model and finite element model of the drum, and select the contact element to simulate the relationship between the plate and the surface of the drum, and use ANSYS software to optimize the optimization model. It is shown form the result that: the minimum of the maximum deformation of the drum getting from the 8th iteration is 0.0021535mm, significantly reduced compared with the initial value 0.002864mm. At this point, the internal diameter D2 of the drum is 300.04mm, the groove width L2 is 14.323mm, the external diameter of groove height D3 is 338.44mm. It indicates that that the smaller the internal diameter of the drum and the narrower the guide groove on the drum surface are, the smaller the maximum deformation of the plate is, and the guide groove height has little influence on the deformation. The results can be provided as theoretical reference for the design of CTP imaging drum, which has popularization and application value.

Vertical Tail Topology Optimization Design Based on the Variable Density Method with Constraint Factor

2013 ◽  
Vol 300-301 ◽  
pp. 280-284 ◽  
Author(s):  
Fu Sheng Qiu ◽  
Wu Qiang Ji ◽  
Hou Chao Xu
Keyword(s):  
Topology Optimization ◽  
Optimization Design ◽  
Optimization Method ◽  
Optimality Criteria ◽  
Variable Density ◽  
Structural Constraints ◽  
Structural Topology ◽  
Interpolation Model ◽  
Constraint Factor ◽  
Density Method

The topology optimization design problem with multiple constraints for the complex vertical tail structure is studied in this paper. The variable density structural topology optimization method is improved by introducing a constraint factor. According to the different structural constraints and design requirements, variable factors and element pseudo density are initialized via finite element method. This method is controlled by the constraint factors, and the improved method combining with Rational Approximation of Material Properties (RAMP) density-stiffness interpolation model with optimality criteria methods (OC), the vertical tail’s stiffness optimization has been finished. The density-stiffness interpolation model, the mathematical model of variable density method with constraint factor, the structural optimization model, the solution model of the OC method, the design variables iterative format, are given in this paper and the algorithm with Matlab program is realized. Lastly, a sample vertical tail case is introduced to validate the feasibility of the algorithm by operating the results and analyzing the data.

Topology Optimization Design of Gearbox Housing in Electric Bus

2014 ◽  
Vol 574 ◽  
pp. 173-178
Author(s):  
Ling Ling ◽  
Yong Huang
Keyword(s):  
Topology Optimization ◽  
Optimization Design ◽  
Variable Density ◽  
Element Analysis ◽  
Design Constraint ◽  
Electric Bus ◽  
Final Design ◽  
Virtual Prototyping Technology ◽  
Design Requirements ◽  
Strength And Stiffness

The virtual prototyping technology in corporation with a finite element analysis was first used to analyze the strength and stiffness of gearbox casing in an electric bus. On the basis of this analysis, the topology optimization technology (TOT) based on the variable density method was introduced into the design of gearbox casing which takes the minimized total flexibility of gearbox as the objective function, the density of each cell as the design variable and the volume as the design constraint. Then, according to the results of topology optimization and the requirements of manufacturing process, the structure of gearbox casing was designed in detail. Finally, the stress analysis of the housing model of the final design was carried out. The results show that the optimized housing not only meets the design requirements of stiffness and strength, but also reduces its quality, which can make the performance of gearbox achieve optimal.

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