scholarly journals Lightweight Design and Dynamics Analysis of ZYL-15000D Directional Drill Reducer

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Xiaohong Zhao ◽  
Xianguo Yan ◽  
Zhi Chen ◽  
Hang Su
Keyword(s):  
Optimization Design ◽  
3D Model ◽  
Lightweight Design ◽  
Gear Train ◽  
Transmission Ratio ◽  
Output Torque ◽  
Design Variables ◽  
Optimal Value ◽  
Parameter Values ◽  
Ansys Workbench

Since the output torque of the rotary reducer of the ZYL-15000D-kilometer directional drill is proportional to the gear train transmission ratio, the output torque is large enough when the input speed and output speed meet the design goal. This paper selects the method of reducing the transmission ratio to optimize the size parameters of the reducer. MATLAB genetic algorithm is used in the optimization design, and the minimum volume of the rotary part reducer is taken as the objective of optimization design, while the design variables and constraints are determined. The optimal value of design variables was obtained through optimization, and the parameter values of each gear were determined accordingly. Through analysis, the total volume of the optimized gear reducer was reduced by 49.6%. Then, the 3D model of the optimized gear was created, and the analysis of the transient dynamics of the optimized gear was carried out with ANSYS Workbench software. According to the analysis results, the optimized gear met the strength requirements and provided a reference for the subsequent optimization design of other types of gear reducers.

Optimization Design on Headstock of Shape High-Speed Vertical Machining Center

2011 ◽  
Vol 121-126 ◽  
pp. 1023-1027
Author(s):  
Chun Zhang ◽  
Zhi Yuan Li
Keyword(s):  
Optimal Design ◽  
Response Surface ◽  
High Speed ◽  
Optimization Design ◽  
Parametric Model ◽  
Machining Center ◽  
Design Variables ◽  
Test Technology ◽  
Design Result ◽  
Ansys Workbench

Optimization design was a technology that searched and determined the optimal design. Parametric model of headstock was established in Pro/E, and the parametric model was imported into the ANSYS Workbench. Then multi-objective optimization design was carried out in DesignXplorer module based on test technology, response surface that the combinations of design variables aimed at the objective function was obtained, the situation which design variables changes impacted on performance parameters from the response surface was viewed, a relatively ideal optimal design result was chosen. The mass of improved headstock was reduced, under the condition that performance in all aspects was not diminished.

Lightweight Design of Outer Wing Based on Importance Evaluation Factor

2014 ◽  
Vol 532 ◽  
pp. 461-465
Author(s):  
Da Qian Zhang ◽  
Ze Peng Zhu ◽  
Xiao Dong Tan
Keyword(s):  
Optimization Design ◽  
Maximum Stress ◽  
Lightweight Design ◽  
Dynamic Performance ◽  
Maximum Displacement ◽  
Finite Element Software ◽  
State Variable ◽  
Design Variables ◽  
Stress Maximum ◽  
The Mathematical Model

The static and dynamic performance index is constraint condition to establish the mathematical model for optimization design of wing. Basically,the analysis of weighted sensitivity of objective function and state variable imports an importance evaluation factor of wing lightweight design to determine the optimization design variables, then using finite element software , with a optimization design module, to carry out a optimization design. As a result, the analysis of the outer wing shows that the premise of the maximum stress, maximum displacement and low modal frequency are better meet the operating requirements, which the wing weight cumulative reduce to 4.02%. Simultaneously, it proves the efficient and effective of such method.

Body Structure Static-Dynamic Analysis and Optimization of a Commercial Vehicle

2014 ◽  
Vol 621 ◽  
pp. 400-406
Author(s):  
Ming Ming Wang ◽  
Teng Fei Li ◽  
Xin Li ◽  
Cheng Liu ◽  
Hui Xia Liu
Keyword(s):  
Finite Element ◽  
Strain Energy ◽  
Optimization Design ◽  
Lightweight Design ◽  
Element Model ◽  
Element Size ◽  
Design Variables ◽  
Wide Range ◽  
Static Performance

White body in the design process needs to meet the needs of a wide range of performance requirement. Adequate stiffness and modal are the basis to ensure the vehicle’s performance of vibration noise. Simultaneously, in order to reduce energy consumption and cost, the lightweight design of the white body has become the mainstream. In this paper, the optimization design is conducted for stiffness and modal of a commercial vehicle’s white body based on the theory of the finite element size sensitivity optimization design. Firstly, build the finite element model of a vehicle’s white body and analyze its stiffness and modal. Some changes were made to the car-body’s partial structure according to the distributing of strain energy achieved from above analysis, which improved the car-body’s dynamic and static performance initially. Secondly, choose panels needed to be optimized by reference to the density of strain energy and panels’ mass. Then, the car-body’s structure was optimized using panels’ thickness as design variables, stiffness and modal frequencies as constrains and minimizing weight of white car-body as objective. After the analysis of the result, modal separation was put forward to improve the quality of this finite element optimization design model. Finally, the car-body’s stiffness and mode nature entirely satisfied the requirements with car-body’s weight decreased.

Topological Optimization Design of Top Beam of the Longmen Milling Machine Based on Hyperworks

2013 ◽  
Vol 378 ◽  
pp. 65-68
Author(s):  
Ning Jia ◽  
Fu Yun Liu ◽  
Yun Ze Yang ◽  
Lin Gan ◽  
Qing Qing Chang
Keyword(s):  
Topology Optimization ◽  
Optimization Design ◽  
Optimal Allocation ◽  
Volume Fraction ◽  
Lightweight Design ◽  
Topological Optimization ◽  
Design Domain ◽  
Milling Machine ◽  
Optimal Distribution ◽  
Design Variables

Topology optimization is a kind of optimized method, which can seek for an optimal allocation of structural material according to the load,constraints and optimization goals .To achieve the lightweight design of the top beam, establishing a minimum strain as the objective function, the volume fraction as the constraint conditions, and the density of design domain as the design variables,implementing the topology optimization for the top beam,the optimal distribution of top beam material is obtained, which provide a basis for the manufacture of top beam.

scholarly journals Optimization Design of the Lower Rocker Arm of a Vertical Roller Mill Based on ANSYS Workbench

2021 ◽  
Vol 11 (21) ◽  
pp. 10408
Author(s):  
Weihua Wei ◽  
Jicheng Shen ◽  
Haipeng Yu ◽  
Bingrui Chen ◽  
Yu Wei
Keyword(s):  
Optimization Design ◽  
Lightweight Design ◽  
Internal Cavity ◽  
Original Design ◽  
Roller Mill ◽  
Maximum Deformation ◽  
Structural Size ◽  
Strength And Deformation ◽  
Vertical Roller ◽  
Ansys Workbench

The lower rocker arm is an important part of the vertical roller mill and its lightweight design is of great significance for reducing the mass and production cost of the roller mill. Firstly, the strength and deformation distribution of the lower rocker arm under working load were analyzed by ANSYS Workbench to determine the maximum stress and maximum deformation. The parts with large strength margin were used as the basis for the optimal design. During the analysis, firstly, the arm body of the lower rocker arm was determined part of the lightweight design. Secondly, the mass of the lower rocker arm was taken as the optimization target, the stress and displacement generated by the load of the lower rocker arm were taken as the constraint conditions, the structural size of the internal cavity of the lower rocker arm was taken as the optimization design parameter, and the mathematical model of the optimization design was established. Finally, the structural size of the internal cavity of the lower rocker arm was optimized by using the response surface optimization module and multi-objective genetic algorithm in ANSYS Workbench. The optimum results show that, compared with the original design model, the lower rocker mass was reduced by 346.3 kg and the decrease was about 5.29%, while the strength and deformation were nearly unchanged. Therefore, by optimizing the design, the material is saved and the cost is reduced, which can provide a reference basis for the design and light weight of the lower rocker arm.

scholarly journals Simulation of Self-Consumption Photovoltaic Installations: Profitability Thresholds

2021 ◽  
Vol 11 (14) ◽  
pp. 6517
Author(s):  
Marta Varo-Martínez ◽  
Luis Manuel Fernández-Ahumada ◽  
Rafael López-Luque ◽  
José Ramírez-Faz
Keyword(s):  
Systematic Study ◽  
Peak Power ◽  
Net Present Value ◽  
Energy Model ◽  
Present Value ◽  
Lower Power ◽  
Design Variables ◽  
Sunshine Hours ◽  
Optimal Value ◽  
Renewable Technology

PV self-consumption can contribute positively to the spread of PV and, therefore, to the progress of renewable energies as a key element in a decarbonized energy model. However, the policies of each country regarding the promotion of this type of renewable technology is fundamental for their growth. Despite the high number of sunshine hours registered in Spain, self-consumption in this country has not been authorized until recently. In this new context, this work presents a systematic study of the profitability limits of a self-consumption PV installation under different conditions of installed peak power, orientation and inclination of the PV panels and level of obstruction of the installation. It was proved that, for the case of study (Córdoba, Spain), the maximum profitability was achieved for PV panels oriented to the south and with an inclination of 15° whereas the most unfavourable conditions are those of PV panels with an orientation and inclination of 180° and 90°, respectively. Furthermore, when the level of obstruction increases the maximum of the Net Present Value of self-consumptions PV installations decreases and this optimal value is achieved for installations with lower power. Finally, empirical adjustment equations have been developed to estimate the profitability parameters of self-consumptions PV installations as a function of their design variables.

Optimization Research on Dynamic Balance of Spatial Engine under Limiting Shaking Moment

2009 ◽  
Vol 626-627 ◽  
pp. 693-698
Author(s):  
Yong Yong Zhu ◽  
S.Y. Gao
Keyword(s):  
Mathematical Model ◽  
Objective Function ◽  
Kinetic Analysis ◽  
Optimization Design ◽  
Design Method ◽  
Dynamic Balance ◽  
Optimized Design ◽  
Design Variables ◽  
The Mathematical Model ◽  
Shaking Moment

Dynamic balance of the spatial engine is researched. By considering the special wobble-plate engine as the model of spatial RRSSC linkages, design variables on the engine structure are confirmed based on the configuration characters and kinetic analysis of wobble-plate engine. In order to control the vibration of the engine frame and to decrease noise caused by the spatial engine, objective function is choosed as the dimensionless combinations of the various shaking forces and moments, the restriction condition of which presents limiting the percent of shaking moment. Then the optimization design is investigated by the mathematical model for dynamic balance. By use of the optimization design method to a type of wobble-plate engine, the optimization process as an example is demonstrated, it shows that the optimized design method benefits to control vibration and noise on the engines and improve the performance practically and theoretically.

The Finite Element Analysis and the Multi-Objective Optimization Design of Spindle Systems of CNC Gantry Machine Tools

2016 ◽  
Vol 693 ◽  
pp. 243-250
Author(s):  
Zhi Zhong Guo ◽  
Yun Shun Zhang ◽  
Shi Hao Liu
Keyword(s):  
Machine Tools ◽  
Optimization Design ◽  
Multi Objective Optimization ◽  
Element Analysis ◽  
Multi Objective ◽  
Vibration Resistance ◽  
Design Variables ◽  
Force Coupling ◽  
The Finite Element Analysis ◽  
Spindle Structure

It is discovered that the vibration resistance of spindle systems needs to be improved based on the statics analysis, modal analysis and heating-force coupling analysis of spindle systems of CNC gantry machine tools. The design variables of optimization are set according to sensitivity analysis, multi-objective and dynamic optimization design is realized and its designing scheme is gained for spindle structure. The research results show that vibration resistance can be improved without change of the quality and static property of spindle systems of CNC gantry machine tools.

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.

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