Methods for Supporting Bioinspired Design

Author(s):  
Michael W. Glier ◽  
Joanna Tsenn ◽  
Julie S. Linsey ◽  
Daniel A. McAdams

Bioinspired design, the use of nature to inspire solutions to engineering problems, is a powerful approach for innovation but is generally practiced on an ad hoc basis. Only recently, however, have researchers sought to develop formal tools and principles to effectively tap the wealth of design solutions found within nature. Research efforts in applying design tools such as the Theory of Inventive Problem Solving (TRIZ), functional modeling, and keyword searches to bioinspired design are summarized in this paper. The efforts to develop effective tools to search biological information for design inspiration are also discussed. This paper presents a case study where BioTRIZ, functional modeling, and bio-keyword searches were taught in a weekend-long workshop to working professionals in the process of obtaining their graduate degrees. The students were then given a project to re-engineer a product using the bioinspired methods. An analysis of their reports is given that discusses student success in implementing bioinspired design methods and student feedback on the methods.

Author(s):  
Ji Ke ◽  
J. S. Wallace ◽  
L. H. Shu

Biology is a good source of analogies for engineering design. One approach of retrieving biological analogies is to perform keyword searches on natural-language sources such as books, journals, etc. A challenge of retrieving information from natural-language sources is the potential requirement to process a large number of search results. This paper describes a categorization method that organizes a large group of diverse biological information into meaningful categories. The benefits of the categorization functionality are demonstrated through a case study on the redesign of a fuel cell bipolar plate. In this case study, our categorization method reduced the effort to systematically identify biological phenomena by up to ∼80%.


Author(s):  
Fabien Durand ◽  
Michael E. Helms ◽  
Joanna Tsenn ◽  
Erin McTigue ◽  
Daniel A. McAdams ◽  
...  

Bioinspired design is becoming an increasingly popular approach that makes use of nature as a source of inspiration to develop designs. Tools and methods are currently being evaluated to determine how designers may best leverage biological systems to generate designs. In this paper we present a study in an engineering elective course at Texas A&M University that explores the effects of five different methods for bioinspired design on the quality and quantity of ideas generated, student self-efficacy, as well as student feedback. These methods include Directed, Case Study, the use of AskNature.org, BioTRIZ, and Functional Modeling. We show that each of the methods produces numerous effective and creative solutions, with a high quality and quantity of ideas. We also show that the methods utilized to teach bioinspired design methods positively affect the students’ design confidence, outcome expectancy and anxiety, while also preserving students’ high motivation towards engineering design. Finally, we identify potential areas for improvement for the methods and the course.


Author(s):  
Michael W. Glier ◽  
Daniel A. McAdams ◽  
Julie S. Linsey

Biomimetic design, the use of nature to inspire solutions to engineering problems, has been practiced on an ad hoc basis throughout human history. Only recently, however, have researchers sought to develop formal tools and principles to effectively tap the wealth of design solutions found within nature. Texas A&M University is developing an undergraduate course to introduce interdisciplinary engineering students to the current concepts, principles, and methods of biomimetic design, as found in published literature. This paper seeks to concisely present the results and conclusions of the many research efforts that will be incorporated into the developing course. The research reviewed in this paper is discussed with some emphasis on its pedagogical implications. Research efforts in applying design tools such as functional modeling, analogical reasoning, and the Theory of Inventive Problem Solving (TRIZ) to biomimicry are summarized. This paper also discusses the efforts to develop effective tools to search biological information for design inspiration. As similar courses in biomimetic design have been conducted at the Georgia Institute of Technology and the University of Maryland, the published findings from those courses are also presented.


Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 480
Author(s):  
Martina Zappaterra ◽  
Laura Menchetti ◽  
Leonardo Nanni Costa ◽  
Barbara Padalino

This study aimed at documenting whether dromedary camels have a preference for shade and how their behavior would change depending on the presence of shade and variable space allowance. A total of 421 animals kept in 76 pens (66 with shelter (Group 1), and 10 without shelter (Group 2)) at the camel market in Doha (Qatar) were recorded for 1 min around 11:00 a.m. when the temperature was above 40 °C. The number of animals in the sun and shade and their behaviors were analyzed using an ad libitum sampling method and an ad hoc ethogram. The results of a chi-square test indicated that camels in Group 1 had a clear preference for shade (p < 0.001). The majority of Group 1 camels were indeed observed in the shade (312/421; 74.11%). These camels spent more time in recumbency and ruminating, while standing, walking, and self-grooming were more commonly expressed by the camels in the sun (p < 0.001). Moreover, locomotory stereotypic behaviors (i.e., pacing) increased as space allowance decreased (p = 0.002). Based on the findings of this pilot study, camels demonstrated a preference for shade; shade seemed to promote positive welfare, while overcrowding seemed to trigger stereotypy and poor welfare. Overall, our preliminary results are novel and provide evidence that shaded areas are of paramount importance for camel welfare. Further research, involving designed studies at multiple locations is needed to confirm these results.


2017 ◽  
Vol 55 (1) ◽  
pp. 33-48 ◽  
Author(s):  
Ann Leaf ◽  
George Odhiambo

Purpose The purpose of this paper is to report on a study examining the perceptions of secondary principals, deputies and teachers, of deputy principal (DP) instructional leadership (IL), as well as deputies’ professional learning (PL) needs. Framed within an interpretivist approach, the specific objectives of this study were: to explore the extent to which DPs are perceived as leaders of learning, to examine the actual responsibilities of these DPs and to explore the PL that support DP roles. Design/methodology/approach The researchers used multiple perspective case studies which included semi-structured interviews and key school document analysis. A thematic content analysis facilitated qualitative descriptions and insights from the perspectives of the principals, DPs and teachers of four high-performing secondary schools in Sydney, Australia. Findings The data revealed that deputies performed a huge range of tasks; all the principals were distributing leadership to their deputies to build leadership capacity and supported their PL in a variety of ways. Across three of the case study schools, most deputies were frequently performing as instructional leaders, improving their school’s performance through distributing leadership, team building and goal setting. Deputy PL was largely dependent on principal mentoring and self-initiated but was often ad hoc. Findings add more validity to the importance of principals building the educational leadership of their deputies. Research limitations/implications This study relied upon responses from four case study schools. Further insight into the key issues discussed may require a longitudinal data that describe perceptions from a substantial number of schools in Australia over time. However, studying only four schools allowed for an in-depth investigation. Practical implications The findings from this study have practical implications for system leaders with responsibilities of framing the deputies’ role as emergent educational leaders rather than as administrators and the need for coherent, integrated, consequential and systematic approaches to DP professional development. Further research is required on the effect of deputy IL on school performance. Originality/value There is a dearth of research-based evidence exploring the range of responsibilities of deputies and perceptions of staff about deputies’ IL role and their PL needs. This is the first published New South Wales, Australian DP study and adds to the growing evidence around perceptions of DPs as instructional leaders by providing an Australian perspective on the phenomenon. The paper raises important concerns about the complexity of the DP’s role on the one hand, and on the other hand, the PL that is perceived to be most appropriate for dealing with this complexity.


1970 ◽  
Vol 24 (3) ◽  
pp. 479-502 ◽  
Author(s):  
R. L. Friedheim ◽  
J. B. Kadane

International arrangements for the uses of the ocean have been the subject of long debate within the United Nations since a speech made by Ambassador Arvid Pardo of Malta before the General Assembly in 1967. Issues in question include the method of delimiting the outer edge of the legal continental shelf; the spectrum of ocean arms control possibilities; proposals to create a declaration of principles governing the exploration for, and the exploitation of, seabed mineral resources with the promise that exploitation take place only if it “benefits mankind as a whole,” especially the developing states; and consideration of schemes to create international machinery to regulate, license, or own the resources of the seabed and subsoil. The discussions and debates began in the First (Political and Security) Committee of the 22nd General Assembly and proceeded through an ad hoc committee to the 23rd and 24th assembly plenary sessions. The creation of a permanent committee on the seabed as a part of the General Assembly's machinery attests to the importance members of the United Nations attribute to ocean problems. Having established the committee, they will be faced soon with the necessity of reaching decisions. The 24th General Assembly, for example, passed a resolution requesting the Secretary-General to ascertain members' attitudes on the convening of a new international conference to deal with a wide range of law of the sea problems.


2021 ◽  
Author(s):  
Guy L. Larose ◽  
Pierre-Olivier Dallaire ◽  
Theresa Erskine ◽  
Chiara Pozzuoli ◽  
Emanuele Mattiello

<p>This paper introduces the methodology RWDI has developed, tested and consolidated over the years working in close collaboration with bridge designers, owners and operators, for the multi-hazard assessment of existing bridges and the ad hoc development of a structural health monitoring programme leading to enhanced resiliency. The work is highlighted through the presentation of a case study for a 2,725 m long cantilever bridge built in 1930. The dynamics of the structure in its current state were characterised and its capacity to today and future wind loading was assessed fully following the proposed methodology prior to the initiation of a structural rehabilitation program to extend the design life of the bridge beyond its 150th anniversary.</p>


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