scholarly journals Tailored Lace: Moldless Fabrication of 3D Bio-Composite Structures through an Integrative Design and Fabrication Process

2021 ◽  
Vol 11 (22) ◽  
pp. 10989
Author(s):  
August Lehrecke ◽  
Cody Tucker ◽  
Xiliu Yang ◽  
Piotr Baszynski ◽  
Hanaa Dahy
Keyword(s):  
Computer Aided Design ◽  
Composite Structures ◽  
Building Materials ◽  
Computational Design ◽  
Natural Fibre ◽  
Fabrication Process ◽  
Small Scale ◽  
Fibre Direction ◽  
Reinforced Polymers ◽  
Aided Design

This research demonstrates an integrative computational design and fabrication workflow for the production of surface-active fibre composites, which uses natural fibres, revitalises a traditional craft, and avoids the use of costly molds. Fibre-reinforced polymers (FRPs) are highly tunable building materials, which gain efficiency from fabrication techniques enabling controlled fibre direction and placement in tune with load-bearing requirements. These techniques have evolved closely with industrial textile processes. However, increased focus on automation within FRP fabrication processes have overlooked potential key benefits presented by some lesser-known traditional techniques of fibre arrangement. This research explores the process of traditional bobbin lace-making and applies it in a computer-aided design and fabrication process of a small-scale structural demonstrator in the form of a chair. The research exposes qualities that can expand the design space of FRPs, as well as speculates about the potential automation of the process. In addition, Natural Fibre-Reinforced Polymers (NFRP) are investigated as a sustainable and human-friendly alternative to more popular carbon and glass FRPs.

A GIS-Based Analysis on the Characteristics of Ancient Architectures in Taizhou, Zhejiang Province, China

2012 ◽  
Vol 446-449 ◽  
pp. 3529-3533
Author(s):  
Ruo Qi Xu ◽  
Hua Peng ◽  
Deng Rong Zhang ◽  
Chu Dong Huang ◽  
Ying Hao Li ◽  
...  
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Computer Aided Design ◽  
Building Materials ◽  
Geographic Information ◽  
Zhejiang Province ◽  
Construction Time ◽  
Computer Aided ◽  
Types Of Information ◽  
Aided Design

Ancient architectures have always been of great interest to a variety of studies. In this analysis, the distribution of ancient architectures in Taizhou, Zhejiang Province is investigated. In each area of the distribution, the characteristic of the ancient architectures are recorded, such as story number, building materials, construction time, etc. The various types of information are then input into a GIS (Geographic Information System) database, which also contains some typical images of the ancient architectures. Some of the data are from GoogleEarth or archived CAD (Computer Aided Design) files. Consequently, the distribution and characteristic of ancient architectures are analyzed consulting the GIS map and attribute table. Although the ancient architectures are similar in Taizhou, Zhejiang Province, there exist some notable differences. The commonness and differences would be significative for the preservation and planning for ancient architectures.

scholarly journals Chairside CAD/CAM Materials: Current Trends of Clinical Uses

Biology ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1170
Author(s):  
Giulio Marchesi ◽  
Alvise Camurri Piloni ◽  
Vanessa Nicolin ◽  
Gianluca Turco ◽  
Roberto Di Lenarda
Keyword(s):  
Clinical Outcome ◽  
Computer Aided Design ◽  
Fabrication Process ◽  
Computer Assisted ◽  
Current Trends ◽  
Computer Aided ◽  
Restorative Materials ◽  
Cad Cam ◽  
Aided Design

Restorative materials are experiencing an extensive upgrade thanks to the use of chairside Computer-aided design/computer-assisted manufacturing (CAD/CAM) restorations. Therefore, due to the variety offered in the market, choosing the best material could be puzzling for the practitioner. The clinical outcome of the restoration is influenced mainly by the material and its handling than by the fabrication process (i.e., CAD/CAM). Information on the restorative materials performances can be difficult to gather and compare. The aim of this article is to provide an overview of chairside CAD/CAM materials, their classification, and clinically relevant aspects that enable the reader to select the most appropriate material for predictable success.

Digital Romantics

Architects ◽  
2019 ◽  
pp. 119-124
Author(s):  
Thomas Yarrow
Keyword(s):  
Computer Aided Design ◽  
Building Materials ◽  
New Technologies ◽  
Digital Technologies ◽  
Working Environment ◽  
Computer Aided ◽  
Digital Humans ◽  
Aided Design ◽  
E Mail

In the office, computers are central to a range of tasks. The architects’ days are mostly spent at screens: checking and responding to e-mail, finding “precedent” images that provide the inspiration for design, researching building materials and new technologies, and most centrally of all using one of a range of computer-aided design packages. Watching them at work, I observe screens flicking perpetually between these programs and tasks. Observing their movements, I find it clear that these architects are thoroughly digital humans, their capacities of thought and action indissoluble from digital technologies that saturate this working environment....

Processing of Novel Electroceramic Components by SFF Techniques

1998 ◽  
Vol 542 ◽  
Author(s):  
A. Safari ◽  
S. C. Danforth ◽  
A. L. Kholkin ◽  
I. A. Cornejo ◽  
F. Mohammadi ◽  
...  
Keyword(s):  
Computer Aided Design ◽  
Composite Structures ◽  
Volume Fraction ◽  
Solid Freeform Fabrication ◽  
Side Lobe ◽  
Electromechanical Properties ◽  
Freeform Fabrication ◽  
Fused Deposition ◽  
Fused Deposition Of Ceramics ◽  
Aided Design

AbstractNovel piezoelectric ceramic and ceramic/polymer composite structures were fabricated by solid freeform fabrication (SFF) for sensor and actuator applications. SFF techniques including fused deposition of ceramics (FDC) and Sanders prototyping (SP) were utilized to fabricate a variety of complex structures directly from a computer aided design (CAD) file. Novel composite structures including volume fraction gradients (VFG) and staggered rods, as well as actuator designs such as tubes, spirals and telescopes were made using the flexibility provided by the above processes. VFG composites were made by SP technique with the ceramic content decreasing from the center towards the edges. This resulted in a reduction of side lobe intensity in the acoustic beam pattern. The FDC technique was used to manufacture high authority actuators utilizing novel designs for the amplification of strain under applied electric field. The design, fabrication and electromechanical properties of these composite and actuator structures are discussed in this paper.

Of algorithms, buildings and fighter jets: a conversation with Robin Forrest

2017 ◽  
Vol 21 (1) ◽  
pp. 53-64 ◽  
Author(s):  
Daniel Cardoso Llach ◽  
Robin Forrest
Keyword(s):  
Computer Aided Design ◽  
Shape Representation ◽  
Computational Design ◽  
Software Systems ◽  
Important Place ◽  
Engineering Mathematics ◽  
Computer Aided ◽  
History Of ◽  
Aided Design ◽  
The University

A founding member of the Computer-Aided Design Group at the University of Cambridge, UK, and a student and collaborator of CAD pioneer Steven A. Coons at MIT, Robin Forrest occupies an important place in the history of computational design. Along with important contributions to the mathematics of shape representation, his coining of the term ‘computational geometry’ in 1971 offered a handle on design techniques that started to emerge – somewhat uncomfortably at first – in the interstices of engineering, mathematics, and the fledgling field of computer science. Initially fostered by governmentsponsored research into Computer-Aided Design for aircraft and car manufacturing, the methods he helped develop have since been encoded in countless commercial software systems for 3D modelling and simulation, helping structure the intellectual work – and the professional identity – of architects, engineers, and other practitioners of design.

scholarly journals A Comprehensive Computational Design for Microstrip Passive and Active Linear Circuits

1970 ◽  
Vol 1 (2) ◽  
Author(s):  
El-Sayed A. El-Badawy ◽  
S. H. Ibrahim
Keyword(s):  
Circuit Design ◽  
Computer Aided Design ◽  
Characteristic Impedance ◽  
Cutoff Frequency ◽  
Computational Design ◽  
High Gain ◽  
Microstrip Lines ◽  
Lange Coupler ◽  
Aided Design ◽  
Microstrip Circuit

In this paper, a complete program called HHSS2 is introduced which is a user-oriented program capable of designing linear active and passive microstrip circuits such as amplifiers, oscillators, mixers, lowpass filters, and couplers. The substrate parameters and the characteristic impedance of the microstrip lines are given to the program as a common statement. Examples for the design of a 3-GHz high gain amplifier, 2.6-GHz oscillator, ring coupler operated at 3.33 GHz, Lange coupler operated at 3.3 GHz, and maximally-flat lowpass filter operated at 2 GHz with 0.75 GHz cutoff frequency are introduced.    Key Words: Computational Microstrip Circuit Design, Microwave Circuits, Computer Aided Design.

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