Knowledge-enabled digital twin for smart designing of aircraft assembly line

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Xiao Chang ◽  
Xiaoliang Jia ◽  
Kuo Liu ◽  
Hao Hu
Keyword(s):  
Design Process ◽  
Assembly Line ◽  
Design Method ◽  
Physical Interaction ◽  
Efficient Design ◽  
Content Type ◽  
Improve Design ◽  
Aircraft Assembly ◽  
Digital Twin ◽  
Design Scheme

Purpose The purpose of this paper is to provide a knowledge-enabled digital twin for smart design (KDT-SD) of aircraft assembly line (AAL) to enhance the AAL efficiency, performance and visibility. Modern AALs usually need to have capabilities such as digital-physical interaction and self-evaluation that brings significant challenges to traditional design method for AAL. The digital twin (DT) combining with reusable knowledge, as the key technologies in this framework, is introduced to promote the design process by configuring, understanding and evaluating design scheme. Design/methodology/approach The proposed KDT-SD framework is designed with the introduction of DT and knowledge. First, dynamic design knowledge library (DDK-Lib) is established which could support the various activities of DT in the entire design process. Then, the knowledge-driven digital AAL modeling method is proposed. At last, knowledge-based smart evaluation is used to understand and identify the design flaws, which could further improvement of the design scheme. Findings By means of the KDT-SD framework proposed, it is possible to apply DT to reduce the complexity and discover design flaws in AAL design. Moreover, the knowledge equips DT with the capacities of rapid modeling and smart evaluation that improve design efficiency and quality. Originality/value The proposed KDT-SD framework can provide efficient design of AAL and evaluate the design performance in advance so that the feasibility of design scheme can be improved as much as possible.

Advanced aircraft performance analysis

2018 ◽  
Vol 90 (4) ◽  
pp. 627-638 ◽  
Author(s):  
Marc Immer ◽  
Philipp Georg Juretzko
Keyword(s):  
Performance Analysis ◽  
Design Process ◽  
Performance Optimization ◽  
Electric Propulsion ◽  
Vertical Plane ◽  
Aircraft Design ◽  
Efficient Design ◽  
Content Type ◽  
Aircraft Performance ◽  
Hybrid Electric

Purpose The preliminary aircraft design process comprises multiple disciplines. During performance analysis, parameters of the design mission have to be optimized. Mission performance optimization is often challenging, especially for complex mission profiles (e.g. for unmanned aerial vehicles [UAVs]) or hybrid-electric propulsion. Therefore, the purpose of this study is to find a methodology that supports aircraft performance analysis and that is applicable to complex profiles and to novel designs. Design/methodology/approach As its core element, the developed method uses a computationally efficient C++ software “Aircraft Performance Program” (APP), which performs a segment-based mission computation. APP performs a time integration of the equations of motion of a point mass in the vertical plane. APP is called via a command line interface from a flexible scripting language (Python). On top of APP’s internal radius of action optimization, state-of-the-art optimization packages (SciPy) are used. Findings The application of the method to a conventional climb schedule shows that the definition of the top of climb has a significant influence on the resulting optimum. Application of the method to a complex UAV mission optimization, which included maximizing the radius of action, was successful. Low computation time enables to perform large parametric studies. This greatly improves the interpretation of the results. Research limitations/implications The scope of the paper is limited to the methodology that allows for advanced performance analysis at the conceptual and preliminary design stages with an emphasis on novel propulsion concepts. The methodology is developed using existing, validated methods, and therefore, this paper does not contain comprehensive validation. Other disciplines, such as cost analysis, life-cycle assessment or market analysis, are not considered. Practical implications With the proposed method, it is possible to obtain not only the desired optimum mission performance but also off-design performance of the investigated design. A thorough analysis of the mission performance provides insight into the design’s capabilities and shortcomings, ultimately aiding in obtaining a more efficient design. Originality/value Recent developments in the area of hybrid or hybrid-electric propulsion systems have shown the need for performance computation tools aiding the related design process. The presented method is especially valuable when novel design concepts with complex mission profiles are investigated.

Design engineers’ perception of health and safety and its impact in the design process

2016 ◽  
Vol 23 (1) ◽  
pp. 40-59 ◽  
Author(s):  
Susan Morrow ◽  
Billy Hare ◽  
Iain Cameron
Keyword(s):  
Design Process ◽  
Design Method ◽  
Health And Safety ◽  
Design Activity ◽  
Content Type ◽  
Safety Issues ◽  
Design Engineers ◽  
Junior Staff ◽  
Safety Considerations ◽  
Perception Of Health

Purpose – The purpose of this paper is to consider design engineers’ perception of health and safety and its impact on their behaviour during design activity. The study presents three types of design engineers each, exhibiting particular tendencies when faced with health and safety considerations during design. The discovery of these tendencies pose important implications for education and professional institutions and practical measures are suggested to help design engineers manage their tendencies to be more conducive to ensuring improved health and safety performance. Design/methodology/approach – An exploratory design method was used – grounded theory, to include 13, in-depth, one-to-one interviews with design engineers, representing junior staff, middle and senior management. Findings – The paper provides empirical insights about how designers think and behave when asked to consider health and safety issues during the design process. It identifies three group types of designers: doers, receivers and givers, who will exhibit their particular tendencies based on how they view and understand the term health and safety. Research limitations/implications – The data obtained were from design engineers only, and therefore the research results may lack generalisability. Therefore, researchers are encouraged to test the proposed propositions. Practical implications – The paper includes implications for those involved in the creation and development of designers e.g., educators and professional bodies. The data forms the basis for helping designers to manage their perceptions towards the term health and safety and thus, their tendencies exhibited in their behaviour. Originality/value – This paper contributes to new understanding of designers’ behaviour and considers the significance of how designers’ views of health and safety will influence their behaviour.

Research on Mechanical Wrench Tool Innovative Design Method

2011 ◽  
Vol 341-342 ◽  
pp. 286-290
Author(s):  
Xiao Ping Chen ◽  
Jin Rong ◽  
Ru Fu Hu
Keyword(s):  
Design Process ◽  
Design Method ◽  
Design Approach ◽  
Innovative Design ◽  
Machinery Industry ◽  
Design Scheme ◽  
Industry Performance ◽  
Mechanical Products

Machinery industry changes with each passing day, asking for the more and more importance of the machinery industry performance. The innovative design needs to be used to tools designing for improving the work more efficiency. Take the wrench product designing as an example, this article analyzes the issue of the mechanical products innovation, applies the theories of innovation to a manual wrench innovative design and puts forward the thought of the wrench innovative design scheme, principles and the design process. In the end, the design scheme is evaluated, which indicates that the innovative design approach can be applied to a manual wrench design.

A Product Design Method Based on Integrated Geometric and Rule-Based Reasoning

2009 ◽  
Vol 628-629 ◽  
pp. 7-12
Author(s):  
Zhi Yi Pan ◽  
X.Y. Cao ◽  
Y. Wu ◽  
Shun De Gao
Keyword(s):  
Product Design ◽  
Design Method ◽  
Geometric Reasoning ◽  
Rule Based ◽  
Improve Design ◽  
Design Scheme ◽  
Reasoning System ◽  
Tooling Design ◽  
Design Software ◽  
Target Design

Though rule-based reasoning system is easy to create and convenient to extend, it is not flexible because of the demand for precise matching. Geometric reasoning system can obtain engineering semantic from CAD model and connect geometric topology with design knowledge, but it can not drive product design directly. Utilizing the complementary of rule-based reasoning and geometric reasoning, a product design method based on integrated geometric and rule-based reasoning is presented. The method can standardize the expression of design scheme which is from geometric reasoning, and dock seamlessly design scheme and input condition in rule-based reasoning system. Furthermore, the result of rule-based reasoning can drive product design directly. The operation of human-computer interaction and designer’s experience needed are decreased greatly. Digital target in locater is significant to harmonize aircraft tie-in. there are different types in it, and the amount of it is huge, so its design process is complicated and fussy. On the basis of the method, a rapid design software package for locator digital target design is developed and has been applied in aircraft assembly tooling design. The application has proved the method can improve design efficiency, standardization and intelligence.

The Application of Hybrid Design Method in Car Body Design

2012 ◽  
Vol 192 ◽  
pp. 455-459
Author(s):  
Shi Yuan Hou
Keyword(s):  
Design Process ◽  
Process Design ◽  
Design Method ◽  
Free Form ◽  
Hybrid Design ◽  
Efficient Design ◽  
Form Complex ◽  
Car Body ◽  
Body Design ◽  
Simple Features

Reverse design and forward design have their strong points each other. The advantages of reverse design lie in the treatment of free-form complex modeling, while forward design is good in modeling in simpler feature. The car body often contains complex curved surface and some simple features. Through a single reverse or forward design can’t realize the efficient design. In order to combine advantages of reverse and forward design, using the hybrid design process design can improve the efficiency of the development of car body.

Research of Electric Radiator Design Based on DFMA Method

2013 ◽  
Vol 313-314 ◽  
pp. 11-14
Author(s):  
Xin Ting Wang ◽  
Jun Xia Zhang ◽  
Li Ping Yin
Keyword(s):  
Design Process ◽  
Structure Design ◽  
Design Practice ◽  
Design Efficiency ◽  
Design For Manufacture ◽  
Improve Design ◽  
Design Scheme ◽  
Assembly Method ◽  
Block Based ◽  
Electric Radiator

Aimed at optimizing electric radiators design process, the enterprises expectationsmanufacturing technologies and market developing status were analyzed, then electric radiators key design restraining factors were summarized, design orientation was proposed finally. Based on this premise, a block-based electric radiator design scheme was presented with the Design For Manufacture & Assembly method (DFMA), then taking electric radiators key structure and part as an example , the application of DFMA in design practice was discussed in the view of coordinating the relation of product styling effect and structure design. Practices show that DFMA method is beneficial to improve design efficiency and feasibility.

scholarly journals Intelligent control of quad-rotor aircrafts with a STM32 microcontroller using deep neural networks

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Xiaochun Guan ◽  
Sheng Lou ◽  
Han Li ◽  
Tinglong Tang
Keyword(s):  
Neural Networks ◽  
Deep Neural Networks ◽  
Data Communication ◽  
Efficient Design ◽  
Embedded Devices ◽  
Content Type ◽  
Design Scheme ◽  
Communication Module ◽  
Aerial Vehicle ◽  
Optical Flow Sensor

Purpose Deployment of deep neural networks on embedded devices is becoming increasingly popular because it can reduce latency and energy consumption for data communication. This paper aims to give out a method for deployment the deep neural networks on a quad-rotor aircraft for further expanding its application scope. Design/methodology/approach In this paper, a design scheme is proposed to implement the flight mission of the quad-rotor aircraft based on multi-sensor fusion. It integrates attitude acquisition module, global positioning system position acquisition module, optical flow sensor, ultrasonic sensor and Bluetooth communication module, etc. A 32-bit microcontroller is adopted as the main controller for the quad-rotor aircraft. To make the quad-rotor aircraft be more intelligent, the study also proposes a method to deploy the pre-trained deep neural networks model on the microcontroller based on the software packages of the RT-Thread internet of things operating system. Findings This design provides a simple and efficient design scheme to further integrate artificial intelligence (AI) algorithm for the control system design of quad-rotor aircraft. Originality/value This method provides an application example and a design reference for the implementation of AI algorithms on unmanned aerial vehicle or terminal robots.

Materiality and digital technologies: concrete experiments for the built environment

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Carla Aramouny
Keyword(s):  
Design Process ◽  
Design Method ◽  
Digital Fabrication ◽  
Digital Design ◽  
Advanced Technology ◽  
Original Design ◽  
Design Work ◽  
Content Type ◽  
Building Products ◽  
Applied Design

PurposeThis paper presents the applied research and design work on innovative and sustainable building products developed by an undergraduate architecture seminar course. It presents the case for innovative uses of cement-based products, while framing the proposals within a global shift toward environmentally responsive and bio-integrated materials.Design/methodology/approachThe methodology utilizes a process of hybridization between digital fabrication and analog making methods that is framed within the larger design discourse and that intersects the digital design process with material know-how. The approach engages local problematics and applies advanced technology and the integration of natural behaviors to develop a rich applied design method.FindingsThrough the presented work and proposed building products, critical findings and outcomes emerge, ones that relate to the design process itself and others to the designed products.Originality/valueThe research presented here proposes novel approaches to cement-based building systems utilizing digital and analog fabrication, and original design solutions that engage with their context and provide active and crucial environmental performance.

Establishment and Experiment of IMGESB as a Sustainable Building Design Method

2012 ◽  
Vol 253-255 ◽  
pp. 81-86
Author(s):  
Dong Zhu Chu ◽  
Shu Xiang Wei
Keyword(s):  
Design Process ◽  
Design Methodology ◽  
Design Method ◽  
Building Design ◽  
Efficient Design ◽  
Sustainable Building ◽  
Design Procedures ◽  
Sustainable Performance ◽  
Integration Mechanism ◽  
Study Case

To realize a higher quality sustainable building, it needs more efficient design methodology from the beginning. Through theoretical study, case analysis and interview practice, based on “the integrated status of generation and evaluation” in building design process, and improving the" sustainable performance" effectively as the core goal, a new methodology named "IMGESB" (Integration Mechanism of Generation-Evaluation for Sustainable Building) is established. Through an experimental design for an office building, IMGESB is applied, tested and optimized. Finally the authors summarized the corresponding design procedures for the framework, which consists of four basic execution modules. IMGESB is not only a design methodology, but also a kind of design ideology in architecture. It can ensure maximize the sustainable goal from the view of procedure in the design process.

scholarly journals Exploration of Digital Twin Design Mechanism of the Deep in Situ Rock Insulation Coring Device

Geofluids ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Bo Yu ◽  
Heping Xie ◽  
Ling Chen ◽  
Wu Zhao ◽  
Zhiqiang He
Keyword(s):  
Product Design ◽  
Design Process ◽  
Design Theory ◽  
Large Scale ◽  
Design Method ◽  
High Fidelity ◽  
Time Data ◽  
Innovative Design ◽  
Digital Twin

With the development of the resource exploration and environmental science drilling, strict and scientific requirements are put forward for the samples taken from drilling. It is significant to keep the original appearance of the core and obtain the in situ core for the analysis of deep geological fluid and the exploration of the law of geological disasters caused by large-scale geological exploitation. To achieve the high-fidelity in situ core of deep rock, the development of the corresponding deep in situ fidelity coring device should involve the insulation coring device. The development of deep in situ fidelity coring device is a typical sophisticated product design. There are many problems in the design process, such as multimodules, multidisciplinary, crossdomain, and high coupling, which makes it more difficult for users to participate in product design and understand the product design intention. Digital twin technology, such as time data collection, accelerated iterative optimization, and high-fidelity rendering, provides users with an immersive experience and deepens their understanding of the product design intention. The exploration of the novel design model combined digital twin technology with innovative design theory. Digital twin innovative design of the deep in situ insulation coring device is based on the innovative design method, which built a digital connection between the pre-research test platform and the corresponding simulation models. This digital twin to help users participate in product design and understand the product design process. Finally, the TOPSIS evaluation model was used to calculate the user’s score on the design scheme, which increased by 27.64%, which improves the overall efficiency of product design. This paper provides a practical design method and technical means for the design of the deep in situ insulation coring device based on the geological mechanism and control theory of thermal insulation core.

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