scholarly journals Modeling and Evaluation of a Novel Hybrid-Driven Compliant Hand Exoskeleton Based on Human-Machine Coupling Model

2021 ◽  
Vol 11 (22) ◽  
pp. 10825
Author(s):  
Qiaoling Meng ◽  
Zhijia Shen ◽  
Zhiyang Nie ◽  
Qingyun Meng ◽  
Zhiyu Wu ◽  
...  
Keyword(s):  
Design Method ◽  
Variable Stiffness ◽  
Coupling Model ◽  
Modeling Method ◽  
The Novel ◽  
Finger Extension ◽  
Finger Flexion ◽  
Final Design ◽  
Series Of Experiments ◽  
Hand Exoskeleton

This paper presents the modeling design method for a novel hybrid-driven compliant hand exoskeleton based on the human-machine coupling model for the patients who have requirements on training and assisting. Firstly, the human-machine coupling model is established based on the kinematics characteristics of human fingers and the Bernoulli beam formula. On this basis, the variable stiffness flexible hinge (VSFH) is used to drive the finger extension and the cable-driven mechanism is used to implement the movement of the finger flexion. Here, a hand orthosis is designed in the proposed hand exoskeleton to act as the base and maintain the function position of the hand for patients with hand dysfunction. Then, a final design prototype is fabricated to evaluate the proposed modeling method. In the end, a series of experiments based on the prototype is proceeded to evaluate its capabilities on stretching force for extension, bio-imitability, finger flexion capability, and fingertip force. The results show that the prototype has a significant improvement in all aspects of the ability mentioned above, and has good bionics. The proposed design method can be utilized to implement the rapid design of the hybrid-driven compliant hand exoskeleton with the changed requirements. The novel modeling method can be easily applied in personalized design in rehabilitation engineering.

scholarly journals Made to Measure: Revealing and Measuring a Dynamic Coastal Environment

2021 ◽  
Author(s):  
◽  
Callum James Leslie
Keyword(s):  
Environmental Changes ◽  
Design Method ◽  
Integrated Approach ◽  
Natural Environments ◽  
Specific Data ◽  
Built Form ◽  
Poetic Narrative ◽  
Final Design ◽  
Series Of Experiments ◽  
Ordering Systems

<p>MacLean Park located on the Kapiti Coast has one of the most dynamic natural environments in the country. As tides rise, dunes shrink and grow and rivermouths shift over time, it can be difficult to perceive these environmental changes due to promptly forgotten benchmarks.  Within this thesis, I argue that architecture could provide both a benchmark and datum by which we can begin to understand and register these environmental changes, highlighting a need for architecture’s role to act as a mediator between our natural and urban environment.  The project explores a series of methods and strategies to make this dynamic and shifting environmental condition visible. A rigid and reductive geometry forms a potential answer. This informs a series of experiments which look to uncover how we can visually measure and observe our built and natural environment. A design-led research methodology leads to initial investigations on form and reduction within a chaotic landscape, followed by approaches to register site specific data and historic landmarks.  The final design investigations centre on a holistic coexistence of built form amongst the dunescape, lifting the modular structure on piloti above the delicate ecosystem below to allow the landscape, dunes and flora to flow freely in a temporal manner and interact with the building. The resulting design method shifts from a reductive approach to taking measure through ordering systems and composition to a more integrated approach between landscape and architecture. Here, measurement and observation become both an instrumental and poetic narrative as the building becomes a reflection of its surrounds.  The resulting tension between a rational and poetic approach to designing sees the Kapiti Island Biosecurity Visitor’s Centre become a measurement device on a coastal threshold. Through this architectural response, we can begin to observe, measure, read and understand the ecological qualities of the immediate site and its association with the township beyond.</p>

scholarly journals Made to Measure: Revealing and Measuring a Dynamic Coastal Environment

2021 ◽  
Author(s):  
◽  
Callum James Leslie
Keyword(s):  
Environmental Changes ◽  
Design Method ◽  
Integrated Approach ◽  
Natural Environments ◽  
Specific Data ◽  
Built Form ◽  
Poetic Narrative ◽  
Final Design ◽  
Series Of Experiments ◽  
Ordering Systems

<p>MacLean Park located on the Kapiti Coast has one of the most dynamic natural environments in the country. As tides rise, dunes shrink and grow and rivermouths shift over time, it can be difficult to perceive these environmental changes due to promptly forgotten benchmarks.  Within this thesis, I argue that architecture could provide both a benchmark and datum by which we can begin to understand and register these environmental changes, highlighting a need for architecture’s role to act as a mediator between our natural and urban environment.  The project explores a series of methods and strategies to make this dynamic and shifting environmental condition visible. A rigid and reductive geometry forms a potential answer. This informs a series of experiments which look to uncover how we can visually measure and observe our built and natural environment. A design-led research methodology leads to initial investigations on form and reduction within a chaotic landscape, followed by approaches to register site specific data and historic landmarks.  The final design investigations centre on a holistic coexistence of built form amongst the dunescape, lifting the modular structure on piloti above the delicate ecosystem below to allow the landscape, dunes and flora to flow freely in a temporal manner and interact with the building. The resulting design method shifts from a reductive approach to taking measure through ordering systems and composition to a more integrated approach between landscape and architecture. Here, measurement and observation become both an instrumental and poetic narrative as the building becomes a reflection of its surrounds.  The resulting tension between a rational and poetic approach to designing sees the Kapiti Island Biosecurity Visitor’s Centre become a measurement device on a coastal threshold. Through this architectural response, we can begin to observe, measure, read and understand the ecological qualities of the immediate site and its association with the township beyond.</p>

scholarly journals Design of a Variable-Stiffness Compliant Skin for a Morphing Leading Edge

2021 ◽  
Vol 11 (7) ◽  
pp. 3165
Author(s):  
Zhigang Wang ◽  
Yu Yang
Keyword(s):  
Composite Laminate ◽  
Large Scale ◽  
Design Method ◽  
Leading Edge ◽  
Variable Stiffness ◽  
Manufacturing Constraints ◽  
Aircraft Wing ◽  
Noise Abatement ◽  
Civil Aircraft ◽  
Final Profile

A seamless and smooth morphing leading edge has remarkable potential for noise abatement and drag reduction of civil aircraft. Variable-stiffness compliant skin based on tailored composite laminate is a concept with great potential for morphing leading edge, but the currently proposed methods have difficulty in taking the manufacturing constraints or layup sequence into account during the optimization process. This paper proposes an innovative two-step design method for a variable-stiffness compliant skin of a morphing leading edge, which includes layup optimization and layup adjustment. The combination of these two steps can not only improve the deformation accuracy of the final profile of the compliant skin but also easily and effectively determine the layup sequence of the composite layup. With the design framework, an optimization model is created for a variable-stiffness compliant skin, and an adjustment method for its layups is presented. Finally, the deformed profiles between the directly optimized layups and the adjusted ones are compared to verify its morphing ability and accuracy. The final results demonstrate that the obtained deforming ability and accuracy are suitable for a large-scale aircraft wing.

scholarly journals Urban Ensembles: An integrated approach to design in steep, urban landscapes

2021 ◽  
Author(s):  
◽  
Myren Burnett
Keyword(s):  
Architectural Design ◽  
Landscape Architecture ◽  
Design Method ◽  
Methodological Approach ◽  
Strong Relationship ◽  
Integrated Approach ◽  
Urban Site ◽  
Urban Landscapes ◽  
Final Design ◽  
Urban Terrain

<p>Urban Ensembles explores the way in which landscape and architecture can be employed together within the design of a steep, urban site. Lyttelton is a small port town on the border of Christchurch, settled in the foothills of a harbour formed by a major volcanic eruption. This rugged setting, with steeply sloping urban terrain, presents an interesting challenge when designing an urban development. The site was badly damaged in a series of earthquakes in 2010-2011, and many of the town’s oldest buildings, heritage structures dating back to the colonial settlement era, were destroyed. This has left a void in the heart of Lyttelton, and caused the loss of much of the tourism business that the town relies upon for its income. This thesis takes a methodological approach to the design of landscape architecture on such a challenging site. A range of techniques are explored, drawing from both landscape and architecture to explore the roles that each discipline plays in the design of urban spaces. The frequent imbalance between disciplines is addressed both through the literature review and design method, as this landscape architecture thesis draws on architectural design as a tool for generating spaces which fall somewhere in between the two ideals of interior and exterior. The final design proposal is an alternative rebuild plan for the central business area to the south of London St, and also addresses the relationships between that site and the surrounding context, both urban and environmental. The aim of this design is to create a series of interconnected spaces which have a strong relationship to the surrounding harbour setting, and also to facilitate development of the pedestrian spaces throughout the block and encouraging the development of activity at the street level, through the interface between buildings and landscape.</p>

scholarly journals The House Reformed: A Reaction to Suburban Monotony

2021 ◽  
Author(s):  
◽  
Florence Mangan
Keyword(s):  
Design Method ◽  
Well Being ◽  
Mass Scale ◽  
Life Styles ◽  
Hands On ◽  
Final Design ◽  
Manual Methods ◽  
The Aesthetic ◽  
House Design ◽  
Made In

<p>Joyless rows of monotonous houses are be- ginning to define the suburban typology of tomorrow. Quality and innovation is being compromised for speed and quantity and there is a distinct lack of consideration for the home’s potential to enrich and influence the life-styles and well-being of its occupants.  This thesis is a reaction to the researcher’s dis- satisfaction with New Zealand’s suburban typology and seeks to identify and demonstrate an alternative design approach. The research- er considers that a house should enable its occupants to flourish by instigating moments of joy and surprise whilst maximising economy of space.  The thesis uses an investigative research method of five different design tests. Each test reveals strategies to aid the approach of designing the suburban typology, focusing on maximising joy, surprise and economy of space.  Both digital and manual methods are used, revealing their respective strengths and flaws. The Digital method used in the Data House and Rigid x Fluid house tests lacked the ability to apply tangible aesthetic qualities to a de- sign. The manual hands on method of used in the Patchwork House and House Reformed tests was hugely beneficial for the aesthetic qualities of design, however it lacked the rigor and capacity to apply individuality on a mass scale.  Discoveries made in the thesis investigations are collated in a final design outcome, the House Reformed. This house design demonstrates a compilation of the successful strategies identified in the research and reveals the benefits of approaching home design with qualities of joy, surprise and economy of space. The most successful strategies used to achieve these aims were establishing a great- er connection with the outdoors, providing flexible spaces through the use of innovative partitions and furniture and injecting unexpected aesthetic moments through the use of interesting texture and colour.  Overall the research reveals a successful de- sign outcome and provides interesting in- sights into design method. It explores worth- while questions and issues related to the lived domestic experience such as the lack of joy, surprise and economy of space in suburban housing and demonstrates the importance of designing with such qualities.</p>

Primary Design of Vaneless Diffusers of Centrifugal Compressor Stages by the Universal Modeling Method

2021 ◽  
pp. 39-52
Author(s):  
O.A. Solovyeva ◽  
K.V. Soldatova ◽  
Y.B. Galerkin ◽  
A.F. Rekstin
Keyword(s):  
Continuous Flow ◽  
Design Method ◽  
Modeling Method ◽  
Inlet Section ◽  
Relative Width ◽  
Design Practice ◽  
Main Section ◽  
Flow Angle ◽  
Gas Dynamic ◽  
Vaneless Diffusers

Vaneless diffusers of industrial centrifugal compressors most often consist of a tapered inlet section and a parallel-walled main section. The study proposes to choose such a width of the main section, at which the flow in the diffuser remains unseparated at the surge limit. To implement the primary design method, an empirical formula was obtained to determine the minimum continuous flow angle depending on the relative width of the diffuser. The primary design of eighteen stages was completed, covering a practically important range of parameters. The corresponding gas-dynamic characteristics were calculated by the universal modeling method, the dimensions and angles of the flow were analyzed. The proposed primary design method is integrated into the universal modeling method and is used in design practice.

DESAIN MEJA TAMU

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Dita Andansari ◽  
Nadya Aglisyifa
Keyword(s):  
Design Method ◽  
Innovative Product ◽  
Design Development ◽  
Project Report ◽  
Final Project ◽  
Design Office ◽  
Final Design ◽  
Design Function ◽  
Coffee Table ◽  
Is Design

ABSTRAK  Perkembangan desain dan produk membuat terbentuknya berbagai variasi produk. Semakin banyak pula kebutuhan orang-orang akan produk yang sesuai dengan keinginannya. Produk yang diinginkan pastinya produk yang inovatif, sesuai kebutuhan, dan tidak lupa desain yang menarik. Fungsi dan desain produk selalu berdasarkan konsumen atau pengguna produk. Begitu pula meja tamu yang memiliki berbagai macam jenis. Meja tamu merupakan salah satu produk yang selalu ada diberbagai macam tempat. Baik di rumah, kantor, maupun sekolah. Dalam laporan tugas akhir yang berjudul “Desain Meja Tamu PT Buran Nusa Respati” ini di desain khusus untuk PT Buran Nusa Respati yang didesain khusus dengan kebutuhan penggunanya. Nantinya diharapkan produk ini dapat menjadi inspirasi sekaligus alternatif baru dalam pengembangan desain mebel khususnya bagian meja tamu dalam dunia industri mebel. Dengan metode perancangan yang sudah dilakukan diantaranya yaitu pengumpulan data, analisis, alternatif desain, pengembangan desain dari alternatif terpilih, serta desain akhir. Sehingga dihasilkanlah desain meja tamu untuk PT Buran Nusa Respati. Kata Kunci: Meja Tamu, Desain Mebel, Kantor   ABSTRACT  Development of design and product make form of various products. More needs of people for products that based on what they need. They absolutely need innovative product, based on needs, and not to mention an interesting design. Function and design of a product always based on consumer and user of product. Similarly, the coffee table has a variety of types. Coffee table is one of a product that always at any places. Such as house, office, even school. In this final project report that titled as “Design of Coffee Table for PT Buran Nusa Respati” is design specially for needs of the user. Later writer hoped this product can be an inspiration as well be a new alternative for development wood design especially for coffee table in wood industrial. With this design method that already done which are gathers data, analysis, alternatives design, design development from chosen alternative design, and final design. With that result is a coffee table for PT Buran Nusa Respati. Keywords: Coffee Table, Wood Design, Office

scholarly journals A Novel Robust Adaptive Backstepping Method Combined with SMC on Strict-Feedback Nonlinear Systems Using Neural Networks

2019 ◽  
Vol 291 ◽  
pp. 01001
Author(s):  
Yahui Li ◽  
Feng Gao ◽  
Franco Bernelli-Zazzera ◽  
Zeyou Tong ◽  
Fugui Li ◽  
...  
Keyword(s):  
Nonlinear Systems ◽  
Sliding Mode ◽  
Design Method ◽  
The Novel ◽  
Backstepping Method ◽  
Adaptive Backstepping ◽  
Closed Loop Systems ◽  
Robust Adaptive ◽  
Derivatives Of ◽  
Strict Feedback

Adaptive backstepping methodology is a powerful tool for nonlinear systems, especially for strict-feedback ones, but its robustness still needs improvements. In this paper, combined with sliding mode control (SMC), a new backstepping design method is proposed to guarantee the robustness. In this method, based on the novel combining method, the auxiliary controller is introduced only in the final step of the real controller, unlike traditional methods, which usually all include an auxiliary controller in every de-signing step to guarantee the robustness of the closed-loop systems. The novel combing methods can avoid calculating multiple and high-order derivatives of the auxiliary controllers in the intermediate steps, low-ering the computational burden in evaluating the controller. The effectiveness of the proposed approach is illustrated from simulation results.

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