Equipment Development of Crankshaft Barrel Finishing on Integrated Design Theory

2012 ◽  
Vol 522 ◽  
pp. 264-267 ◽  
Author(s):  
Wen Hui Li ◽  
Sheng Qiang Yang ◽  
Xiu Hong Li
Keyword(s):  
Design Theory ◽  
Optimization Design ◽  
Design Method ◽  
Integrated Design ◽  
Function Optimization ◽  
Equipment Development ◽  
Barrel Finishing

ntegrated design theory and method oriented to the product generalized quality is one design method facing to the full-function and whole performance. Design theory of barrel finishing equipment is put forward by the design of crankshaft barrel finishing equipment, function optimization and visual optimization design are mainly discussed, which can provide the design thought for developing new barrel finishing equipment.

Application of Intelligent Optimization Algorithm in Mechanical Design

2015 ◽  
Vol 713-715 ◽  
pp. 2049-2052
Author(s):  
Sha Sha Dou
Keyword(s):  
Design Theory ◽  
Optimization Design ◽  
Mechanical Design ◽  
Design Method ◽  
Computational Effort ◽  
Ant Algorithm ◽  
Design Problems ◽  
Intelligent Optimization Algorithm ◽  
Design Requirements ◽  
Mechanical Optimization

Mechanical optimization design is a new design method in the development foundation of the modern mechanical design theory, the application of optimization design in mechanical design can make the scheme achieve some optimization results in the design requirements specified, without consuming too much computational effort. The corresponding mathematical models of ant algorithm and Cellular ant algorithm are established, according to the actual mechanical design problems, and used to solve the established mathematical model by computer, so as to obtains the optimal design scheme.

Reliability-Based Robust Optimization Design for Rubbing Rotor System

2011 ◽  
Vol 105-107 ◽  
pp. 1100-1104
Author(s):  
Chang Qing Su ◽  
Le Xin Li ◽  
Yi Min Zhang
Keyword(s):  
Robust Design ◽  
Design Theory ◽  
Optimization Design ◽  
Design Method ◽  
Rotor System ◽  
Fourth Moment ◽  
Reliability Sensitivity ◽  
Robust Optimization Design ◽  
Reliability Based Optimization ◽  
First Four Moments

Based on the reliability-based optimization design theory, the reliability sensitivity technique and the robust design method, the reliability-based robust design of rubbing rotor system is extensively discussed and a numerical method for reliability-based robust design is proposed. The reliability sensitivity is added to the reliability-based optimization design model and the reliability-based robust design is described as a multi-objection optimization. On the condition of known first four moments of basic random variables, the respective program can be used to obtain the reliability-based robust design information of rubbing rotor system accurately and quickly using the fourth moment technique. According to the numerical results, the approach proposed is a convenient and practical reliability-based roust design method.

scholarly journals Knowledge of Making Life: Design Pattern for Regenerative-Adaptive Design

2017 ◽  
Vol 2 (2) ◽  
pp. 203 ◽  
Author(s):  
Phillip Roös ◽  
David Jones
Keyword(s):  
Design Theory ◽  
Adaptive Design ◽  
Design Method ◽  
Integrated Design ◽  
Transformation Process ◽  
Pattern Language ◽  
New Era ◽  
Pattern Theory ◽  
Regenerative Design ◽  
Whole Systems

<p>An astonishing intense fascination is under way in the design sciences, where the words of ‘living structures’ and ‘adaptive’ are being linked with ‘technology.  In part fuelled by the emergence of the Anthropocene discourse, these words are inspiring authoritative new insights into the workings of wild nature, humanity’s position and responsibility to planet Earth, and is being articulated through the rapidly increasing science of pattern theory. The new terminology is provoking the design sciences to seriously consider technologically-informed innovation in design and new possibilities including living technology, morphogenetic sequences, self-organisation, generative codes, biophilia, biomimetics and regenerative-adaptive design, opening the doors to a new era in ecology-informed design. The idea of design as an adaptive and transformation process, is at the core of the whole systems theory pioneered by Alexander in <em>A Pattern Language</em> (1977) and <em>The Nature of Order</em> (2001-2005).  Alexander positioned this hypothesis in generative codes supported by morphogenetic sequences.  Drawing upon Alexander’s <em>The Nature of Order</em> (2001-2005), this paper advances a regenerative-adaptive design theory (Roӧs, 2016), towards a holistic integrated design method that incorporates the principles of regenerative design with an adaptive pattern language that re-establishes human wholeness with nature and offers relevant strategies towards resilience; in essence creating a living technology. </p>

scholarly journals Reliability evaluation for colliery machine based on fuzzy interval model

2021 ◽  
Vol 69 (5) ◽  
pp. 149
Author(s):  
Li Yang ◽  
Chuang Chen
Keyword(s):  
Evaluation System ◽  
Design Theory ◽  
Optimization Design ◽  
Evaluation Method ◽  
Design Method ◽  
Reliability Evaluation ◽  
Fuzzy Evaluation ◽  
Mechanical Reliability ◽  
Interval Model ◽  
Reliability Design

The mechanical reliability design method is a common method, and it is the most direct and effective method to carry out the mechanical reliability design at present. The reliability optimization design is an effective optimization design method which is developed in combination with the reliability design theory on the basis of the conventional optimization design. Taking the antifriction bearing as an example, this paper systematically expounds all kinds of mechanical reliability design methods. Through comprehensive analysis of various factors that affect the reliability of colliery machine, the index system of colliery machine reliability evaluation is established. Because of the complexity and diversity of the use of colliery machine in the evaluation system, and the fuzziness of human thinking, it is difficult to give the deterministic evaluation information in numerical form, so this paper also analyzes the design method of colliery mechanical reliability, and puts forward an interval fuzzy evaluation method for colliery mechanical reliability evaluation to avoid overload operation of colliery machine and ensure safety production and safety of workers. The simulation results show that the inherent law of reliability is effectively characterized by this method, and it provides a evidence for security produce and scientific decision-making of colliery mechine.

scholarly journals A Comprehensive Optimization Design Method of Aerodynamic, Acoustic, and Stealth of Helicopter Rotor Blades Based on Genetic Algorithm

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Mingxu Yi ◽  
Yalin Pan ◽  
Jun Huang ◽  
Lifeng Wang ◽  
Dawei Liu
Keyword(s):  
Genetic Algorithm ◽  
Optimization Design ◽  
Design Method ◽  
Integrated Design ◽  
Optimization Method ◽  
Rotor Blades ◽  
Helicopter Rotor ◽  
Optimization Approach ◽  
Design Variables ◽  
Helicopter Rotor Blades

In this paper, a comprehensive optimization approach is presented to analyze the aerodynamic, acoustic, and stealth characteristics of helicopter rotor blades in hover flight based on the genetic algorithm (GA). The aerodynamic characteristics are simulated by the blade element momentum theory. And the acoustics are computed by the Farassat theory. The stealth performances are calculated through the combination of physical optics (PO) and equivalent currents (MEC). Furthermore, an advanced geometry representation algorithm which applies the class function/shape function transformation (CST) is introduced to generate the airfoil coordinates. This method is utilized to discuss the airfoil shape in terms of server design variables. The aerodynamic, acoustic, and stealth integrated design aims to achieve the minimum radar cross section (RCS) under the constraint of aerodynamic and acoustic requirement through the adjustment of airfoil shape design variables. Two types of rotor are used to illustrate the optimization method. The results obtained in this work show that the proposed technique is effective and acceptable.

Structural Optimization Design and Analysis of Impeller Based on Comprehensive Performance

2011 ◽  
Vol 121-126 ◽  
pp. 1641-1645
Author(s):  
Xiao Mei You ◽  
Lei Meng ◽  
Xue Jun Wang ◽  
Ji Shuang Dai ◽  
Bang Chun Wen
Keyword(s):  
Structural Optimization ◽  
Design Theory ◽  
Optimization Design ◽  
Large Scale ◽  
Integrated Design ◽  
Inertial Force ◽  
The Finite Element Method ◽  
Innovative Design ◽  
Comprehensive Performance ◽  
Assembly Structure

Based on the product integrated design theory, the key part of large-scale centrifugal compressor — the impeller is researched. Structural optimization design and analysis on the conventional impeller is completed by the finite element method, and then the strength characteristic and the distortion tendency of the impeller under the action of the inertial force are obtained, the stress distribution of the impeller assembly structure after reaching stability in the assembly process is also obtained. The correctness and effectiveness of structural optimization design of the impeller are verified by the analysis results, and the comprehensive performance of the impeller has been greatly improved. The results above are also laid the foundation for optimization design and innovative design for other mechanical key components.

scholarly journals Optimization design of powertrain mounting system considering vibration analysis of multi-excitation

2018 ◽  
Vol 10 (9) ◽  
pp. 168781401878824 ◽  
Author(s):  
Xiangyang Xu ◽  
Chengyun Su ◽  
Peng Dong ◽  
Yanfang Liu ◽  
Shuhan Wang
Keyword(s):  
Energy Method ◽  
Vibration Analysis ◽  
Optimization Design ◽  
Vibration Isolation ◽  
Design Method ◽  
Robustness Analysis ◽  
Integrated Design ◽  
Front Wheel ◽  
Rigid Body Dynamics ◽  
Response Characteristics

The stiffness of mounting system determines the vibration isolation ability of the transmitted path, which is the key factor that affects the vibration and noise of vehicle. In order to improve the vibration isolation ability of the powertrain mounting system, considering the powertrain of front wheel drive car as the research object, the vibration decoupling rate and its corresponding frequency of the powertrain mounting system are analyzed by rigid body dynamics and energy method. The correctness of the calculation program with energy method has been verified by calculated vibration decoupling rate. Based on the genetic algorithm and the fusion robustness analysis, the decoupling rate and modal frequency of the mountings in all directions are considered as the objectives; the stiffness of the three mountings is optimally designed. Through multi-excitation of three methods and vehicle test, the vibration response characteristics and the vibration noise test data of the optimization stiffness are compared and the results shown that the vibration isolation performance has been significantly improved more than 10%. An integrated design method of stiffness optimization design and vibration analysis in vehicle PMS is formed, which has theoretical and practical value, and can reduce vehicle vibration and noise.

scholarly journals Custom-Fit and Lightweight Optimization Design of Exoskeletons Using Parametric Conformal Lattice

2021 ◽  
pp. 129-138
Author(s):  
Fuyuan Liu ◽  
Min Chen ◽  
Lizhe Wang ◽  
Xiang Wang ◽  
Cheng-Hung Lo
Keyword(s):  
Lower Limb ◽  
Optimization Design ◽  
Design Method ◽  
Lightweight Design ◽  
Integrated Design ◽  
Element Analysis ◽  
Lower Limb Exoskeleton ◽  
Structural Framework ◽  
The Finite Element Analysis ◽  
Exoskeleton Design

AbstractThis paper presents an integrated design method for the customization and lightweight design of free-shaped wearable devices, illustrated by a lower limb exoskeleton. The customized design space is derived from the 3D scanning models. Based on the finite element analysis, the structural framework is determined through topology optimization with allowable strength. By means of generative design, the lattice library is constructed to fill the frames under different conformal algorithms. Finally, the proposed method is illustrated by the exoskeleton design case.

Frequency Reliability Robust Optimization for Rotor System

2012 ◽  
Vol 479-481 ◽  
pp. 1023-1026
Author(s):  
Chang Qing Su ◽  
Le Xin Li
Keyword(s):  
Robust Optimization ◽  
Robust Design ◽  
Design Theory ◽  
Optimization Design ◽  
Design Method ◽  
Optimization Method ◽  
Rotor System ◽  
Reliability Design ◽  
Reliability Sensitivity ◽  
Reliability Robust Design

The material properties and geometry of rotor system are random parameters because of the manufacturing environment, manufacturing and installation errors and other factors. Based on the reliability design theory, the reliability sensitivity technique and the robust design method, the frequency reliability robust optimization method of rotor system is extensively discussed. The frequency reliability sensitivity is added to the reliability-based optimization design model of rotor system. The frequency reliability robust design is described as a multi-objection optimization. The method presented provided the theoretic basis for the reliability robust design of the rotor system. A numerical example demonstrated that the proposed method is effective.

Sign in / Sign up

Export Citation Format

Share Document