An efficient method for exploded view generation through assembly coherence data and precedence relations

2018 ◽  
Vol 15 (2) ◽  
pp. 248-253 ◽  
Author(s):  
M.V.A. Raju Bahubalendruni
Keyword(s):  
Collision Detection ◽  
Design Methodology ◽  
Three Dimensional ◽  
Instructional Materials ◽  
Content Type ◽  
Contact Information ◽  
Mating Surface ◽  
The Common ◽  
Exploded View ◽  
Geometric Feasibility

Purpose Three-dimensional exploded view is a schematic representation of a product anticipated for performing assembly or disassembly operations. Exploded view is found in many applications, such as product instructional materials, repair and maintenance handbooks. This paper aims to propose an efficient exploded view generation technique based on assembly coherence data and disassembly feasibility testing, and illustrate it on various configurations of assemblies. Design/methodology/approach The proposed methodology extracts the assembly contact information between the constituent parts and geometric feasibility relation matrix based on the common mating surface of part pairs in liaison and assembly collision detection. These data are further used for exploded view generation. Findings The proposed exploded view generation method determines the possible disassembly sequences and simplifies the procedure in determining the number of disassembly levels. Research limitations/implications The procedure consumes more time for the products with large number of part counts having numerous non-ruled surfaces. Originality/value The proposed method is effectively used to solve assemblies, where parts are assembled through oblique orientations. The method is found successful in generating exploded view for products with large number of parts through collision-free paths.

A biomimetic 3D airflow sensor made of an array of two piezoelectric metal-core fibers

Sensor Review ◽  
2017 ◽  
Vol 37 (3) ◽  
pp. 312-321 ◽  
Author(s):  
Yixiang Bian ◽  
Can He ◽  
Kaixuan Sun ◽  
Longchao Dai ◽  
Hui Shen ◽  
...  
Keyword(s):  
Design Methodology ◽  
Spherical Surface ◽  
Three Dimensional ◽  
Three Dimensions ◽  
Piezoceramic Cylinder ◽  
Metal Core ◽  
Content Type ◽  
3D Space ◽  
Highly Sensitive ◽  
Airflow Sensor

Purpose The purpose of this paper is to design and fabricate a three-dimensional (3D) bionic airflow sensing array made of two multi-electrode piezoelectric metal-core fibers (MPMFs), inspired by the structure of a cricket’s highly sensitive airflow receptor (consisting of two cerci). Design/methodology/approach A metal core was positioned at the center of an MPMF and surrounded by a hollow piezoceramic cylinder. Four thin metal films were spray-coated symmetrically on the surface of the fiber that could be used as two pairs of sensor electrodes. Findings In 3D space, four output signals of the two MPMFs arrays can form three “8”-shaped spheres. Similarly, the sensing signals for the same airflow are located on a spherical surface. Originality/value Two MPMF arrays are sufficient to detect the speed and direction of airflow in all three dimensions.

Comparison of the reluctance laminated and solid rotor synchronous machine operating at high temperatures

2019 ◽  
Vol 38 (4) ◽  
pp. 1111-1119 ◽  
Author(s):  
Marcin Lefik ◽  
Krzysztof Komeza ◽  
Ewa Napieralska-Juszczak ◽  
Daniel Roger ◽  
Piotr Andrzej Napieralski
Keyword(s):  
High Speed ◽  
Design Methodology ◽  
Three Dimensional ◽  
Synchronous Machine ◽  
Point Of View ◽  
Heat Sources ◽  
Model Calculations ◽  
Content Type ◽  
Thermal Phenomenon ◽  
Practical Implications

Purpose The purpose of this paper is to present a comparison between reluctance synchronous machine-enabling work at high internal temperature (HT° machine) with laminated and solid rotor. Design/methodology/approach To obtain heat sources for the thermal model, calculations of the electromagnetic field were made using the Opera 3D program including effect of rotation and the resulting eddy current losses. To analyse the thermal phenomenon, the 3D coupled thermal-fluid (CFD) model is used. Findings The presented results show clearly that laminated construction is much better from a point of view of efficiency and temperature. However, solid construction can be interesting for high speed machines due to their mechanical robustness. Research limitations/implications The main problem, despite the use of parallel calculations, is the long calculation time. Practical implications The obtained simulation and experimental results show the possibility of building a machine operating at a much higher ambient temperature than it was previously produced for example in the vicinity of the aircraft turbines. Originality/value The paper presents the application of fully three-dimensional coupled electromagnetic and thermal analysis of new machine constructions designed for elevated temperature.

Buckling analysis of a delaminated panel by using a kinematic global-local coupling approach

2014 ◽  
Vol 5 (4) ◽  
pp. 262-278
Author(s):  
A. Sellitto ◽  
R. Borrelli ◽  
F. Caputo ◽  
A. Riccio ◽  
F. Scaramuzzino
Keyword(s):  
Design Methodology ◽  
Three Dimensional ◽  
Matrix Cracking ◽  
Composite Panel ◽  
Stiffened Panel ◽  
Local Approach ◽  
Content Type ◽  
Kinematic Coupling ◽  
Coupling Approach ◽  
Delamination Front

Purpose – The purpose of this paper is to investigate on the behaviour of a delaminated stiffened panel; the delamination growth is simulated via fracture elements implemented in B2000++® code based on the Modified Virtual Crack Closure Technique (MVCCT), matrix cracking and fibre failure have been also taken into account. Design/methodology/approach – In order to correctly apply the MVCCT on the delamination front a very fine three-dimensional (3D) mesh is required very close to the delaminated area, while a 2D-shell model has been employed for the areas of minor interest. In order to couple the shell domain to the solid one, shell-to-solid coupling elements based on kinematic constraints have been used. Findings – Results obtained with the global/local approach are in good correlation with those obtained with experimental results. Originality/value – The global/local approach based on kinematic coupling elements in conjunction with fracture elements allows to investigate and predict the behaviour of a stiffened delaminated composite panel in an efficient and effective way.

Unveiling the myths of M&A integration: challenging general management and consulting practice

2015 ◽  
Vol 36 (2) ◽  
pp. 16-24 ◽  
Author(s):  
Florian Bauer ◽  
Julia Hautz ◽  
Kurt Matzler
Keyword(s):  
Design Methodology ◽  
Research Management ◽  
Integration Process ◽  
Senior Managers ◽  
Content Type ◽  
Corporate Development ◽  
General Management ◽  
Quantitative Studies ◽  
The Common ◽  
Successful Integration

Purpose – The purpose of this paper is to detect and challenge generally accepted management and consulting practice in Mergers & Acquisitions (M&As). M&As have been an important issue in strategic management and corporate development for decades. The integration process of two separate entities has been found to be of importance, and has, accordingly, received a significant amount of attention by research, management and consulting literature. Based on these insights, managers tend to rely on well-established and generally accepted rules developed by practice and consultants that should support a successful integration process and the generation of value. Nonetheless, M&As’ efforts still often fail to create value. So is the common practice of the established drivers and beneficial consequences of the integration of M&As right, or do the experiences of consultants, companies and managers reveal something different? Design/methodology/approach – To understand these challenges, the authors spent four years studying M&A projects and subsequent integration processes of more than 400 companies that engaged in M&A efforts. The data derived from four survey-based quantitative studies among more than 430 CEOs, CFOs and other senior managers in the field of M&As and personal interviews that were conducted to get in-depth insights. Findings – This extensive research on the efforts and projects of M&As over many years and including many companies reveals that successful integration processes are complex, social and culturally dependent endeavors and that the application of commonly accepted and established principles oversimplifies and disregards the interdependencies. Originality/value – The present paper unveils four established principles concerning the successful integration after M&As as tenacious myths and provides more differentiated insights into value-destroying and value-creating mechanisms in M&As.

Volatility discovery in cryptocurrency markets

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Thomas Dimpfl ◽  
Dalia Elshiaty
Keyword(s):  
Design Methodology ◽  
Stochastic Volatility Model ◽  
Discrete Version ◽  
Data Series ◽  
Content Type ◽  
Vector Autoregressive ◽  
Volatility Model ◽  
Information Shares ◽  
The Common ◽  
To Come

PurposeCryptocurrency markets are notoriously noisy, but not all markets might behave in the exact same way. Therefore, the aim of this paper is to investigate which one of the cryptocurrency markets contributes the most to the common volatility component inherent in the market.Design/methodology/approachThe paper extracts each of the cryptocurrency's markets' latent volatility using a stochastic volatility model and, subsequently, models their dynamics in a fractionally cointegrated vector autoregressive model. The authors use the refinement of Lien and Shrestha (2009, J. Futures Mark) to come up with unique Hasbrouck (1995, J. Finance) information shares.FindingsThe authors’ findings indicate that Bitfinex is the leading market for Bitcoin and Ripple, while Bitstamp dominates for Ethereum and Litecoin. Based on the dominant market for each cryptocurrency, the authors find that the volatility of Bitcoin explains most of the volatility among the different cryptocurrencies.Research limitations/implicationsThe authors’ findings are limited by the availability of the cryptocurrency data. Apart from Bitcoin, the data series for the other cryptocurrencies are not long enough to ensure the precision of the authors’ estimates.Originality/valueTo date, only price discovery in cryptocurrencies has been studied and identified. This paper extends the current literature into the realm of volatility discovery. In addition, the authors propose a discrete version for the evolution of a markets fundamental volatility, extending the work of Dias et al. (2018).

Seeking transparency makes one blind: how to rethink disclosure, account for nature and make corporations sustainable

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Paolo Quattrone
Keyword(s):  
Social Inequality ◽  
Common Good ◽  
Design Methodology ◽  
Value Added ◽  
Institutional Arrangements ◽  
Content Type ◽  
Corporate Behavior ◽  
Income Statement ◽  
The Common ◽  
Human Actors

PurposeFinancial and nonfinancial disclosures are still anchored to conventional notions of transparency, whereby corporations “push” information out to various stakeholders. Such information is now “pulled” from various sources and addresses aspects of corporate behavior that go well beyond those envisioned by the disclosure framework. This shift makes notions of values, measurement and accountability more fragmented, complex and difficult. The paper aims to bring the accounting scholarly debate back to what and how transparency can be achieved especially in relation to issues of social inequality and sustainability.Design/methodology/approachAfter an analysis of the limitations of current approaches to disclosure, the paper proposes a shift toward normative policies that profit of years of critique of positivism.FindingsDrawing on the notion of value-added, the paper ends with a new income statement design, labeled as Value-Added Statement for Nature, which recognizes Nature as a further stakeholder and forces human stakeholders to give voice, or at least acknowledge the lack of voice, for non-human actors.Originality/valueThe author proposes a shift in the perspective, practice and institutional arrangements in which disclosure occurs. Measurement and transparency need to happen in communication exercises, which do not presuppose what needs to be made transparent once and for good but define procedures on how to make fragmented, complex, multiple and volatile notions of value transparent. Income statements and accounting more in general is to be reconceived as a platform where stakeholders will have to continuously negotiate what counts as the common good in the interest of all, including Nature.

scholarly journals Accounting for the messiness of the research process: the fieldpath approach

2018 ◽  
Vol 13 (4) ◽  
pp. 315-332 ◽  
Author(s):  
Perttu Salovaara
Keyword(s):  
Qualitative Research ◽  
Design Methodology ◽  
Research Process ◽  
Content Type ◽  
Environmental Consequences ◽  
Human Ethics ◽  
Conceptual Paper ◽  
The Common ◽  
Practical Implications

Purpose It has recently become more acknowledged that there is a quality of “messiness” to the qualitative research process. The purpose of this paper is to introduce the fieldpath approach—a hermeneutically inspired framework—to account for the non-linearity, uncertainty and ambiguity of the research process. Design/methodology/approach This conceptual paper reviews how the scope of hermeneutics has been partly misunderstood. The paper discusses how the scope of hermeneutics has lately been expanded by works such as Günter Figal’s (2010) Objectivity: The Hermeneutical and Philosophy. Findings The fieldpath approach proposes that a heightened relation to materiality enables the messiness of the process to be preserved, while at the same time offering a way to find one’s footing in the midst of ontologically incomplete phenomena that are still—in a processual fashion—forming and becoming. Research limitations/implications This is a conceptual paper. In addition to the research mentioned here, more studies would be needed to legitimise, test and refine the approach. Practical implications Objectivity provides an additional criterion for researchers to lean on when facing the non-linearity and unexpected turns inherent in the qualitative research process. Social implications The stress on materiality involves an ethical dimension. Post-human ethics are concerned with the future environmental consequences and sustainability of the material world. The way that matter matters in our methodologies is of primary importance. Originality/value First, the paper emphasises that hermeneutics, contrary to the common perception, does offer criteria for evaluating between interpretations. Second, it introduces the notion of hermeneutic objectivity, which stresses the importance of materiality for interpretations. Third, it introduces the fieldpath approach, which, based on the previous criterion of hermeneutic objectivity, allows for the messiness of the research process, while also preserving a tight grip on the hermeneutic imperative of “understanding in a new way”.

Service quality function deployment by the C-shaped QFD 3D matrix

2018 ◽  
Vol 25 (9) ◽  
pp. 3386-3405 ◽  
Author(s):  
Maryam Hassani ◽  
Arash Shahin ◽  
Manouchehr Kheradmandnia
Keyword(s):  
Quality Function Deployment ◽  
Design Methodology ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Customer Requirements ◽  
Content Type ◽  
Process Characteristics ◽  
The Matrix ◽  
3D Matrix ◽  
Simultaneous Comparison

Purpose The purpose of this paper is to examine the application of C-shaped QFD 3D Matrix in comparing process characteristics (PC), performance aspects (PA) and customer requirements, simultaneously and to prioritize the first two sets, respectively. Design/methodology/approach A three dimensional matrix has been developed with three sets of PC, PA and customers’ requirements and C-shaped matrix has been applied for simultaneous comparison of the dimensions and prioritization of the subsets of PC and PA. The proposed approach has been examined in a post bank. Findings Findings confirm the possibility of simultaneous comparison and prioritization of the three sets of dimensions of this study in post bank services. In addition, “growth and learning” and “bilateral relationship with suppliers” had the first priorities among PA and PC, respectively. Research limitations/implications While the proposed approach has many advantages, filling the matrixes is time-consuming. Since illustrating the 3D matrix was not possible, the matrix was separated into five two-dimensional matrixes. Originality/value Compared to the studied literature, the proposed approach is practically new in the post bank services.

Cue-less consumers in factory outlet stores: reference price effects on consumer evaluations when semantic phrases are missing

2018 ◽  
Vol 27 (4) ◽  
pp. 415-426
Author(s):  
Jay P. Carlson ◽  
Larry D. Compeau
Keyword(s):  
Qualitative Study ◽  
Design Methodology ◽  
Consumer Evaluations ◽  
Content Type ◽  
Consumer Responses ◽  
Semantic Cues ◽  
Reference Prices ◽  
Price Effects ◽  
The Common ◽  
To Come

Purpose Prior research has demonstrated that reference prices can affect consumer responses, but the reference prices examined have been presented along with semantic cues [e.g. manufacturer’s suggested retail price (MSRP) and Compare At]. This study is unique in investigating the effects of reference prices that do not include a semantic cue (i.e. “cue-less”) on consumers’ responses. It also studies consumers’ beliefs about factory outlet stores, a seldom-studied store type in which cue-less reference prices are used. Design/methodology/approach One qualitative study and one experiment were carried out in this research. Findings The qualitative study revealed that a price tag including cue-less reference prices was unlikely to be viewed as a seller mistake or with suspicion, but nonetheless did confuse some respondents. The experiment demonstrated that while consumers find cue-less reference prices to be somewhat less believable that high MSRPs, these beliefs do not appear to come into play when consumers judge attractiveness (e.g. perceived value). Additionally, the results suggest that consumers believe that a product available for sale in a factory outlet store is likely to have been previously available at a different type of store. Originality/value This research advances the theory of the effects of reference prices on consumers’ responses by examining the common practice of not labeling reference prices with semantic cues. It also extends the literature regarding consumer beliefs about factory outlet stores.

Seven information practices for alleviating information vulnerability

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Devendra Dilip Potnis ◽  
Joseph Winberry
Keyword(s):  
Literature Review ◽  
Design Methodology ◽  
Information Science ◽  
Information Access ◽  
Three Dimensional ◽  
Content Type ◽  
Information Practices ◽  
Information Professionals ◽  
Practical Implications ◽  
Real World Problems

PurposeThis literature review aims to identify conscious, intentional, repetitive and transferrable information-related decisions and activities (i.e. information practices) for individuals to alleviate their information vulnerability. Information vulnerability refers to the lack of access to accurate, affordable, complete, relevant and timely information or the inability to use such information, which can place individuals, communities or society at disadvantage or hurt them.Design/methodology/approachConceptual literature review.FindingsThis review presents seven conscious, intentional, repetitive and transferrable information practices to alleviate information vulnerability.Practical implicationsDue to the transferability potential of the seven information practices, diverse populations in varied contexts could refer to, adapt and benefit from appropriate combinations of information practices and their manifestations. The framework can be used by individuals for alleviating information vulnerability. Thus, this paper responds to the call for conducting action-driven research in information science for addressing real-world problems. Information professionals can help individuals select and implement appropriate combinations of seven information practices for alleviating information vulnerability.Originality/valueWe propose (1) a parsimonious, episodic framework for alleviating information vulnerability, which depicts the inter-relationship among the seven information practices and (2) a three-dimensional plot with information access, use and value as three axes to map the manifestation and outcome of alleviating information vulnerability.

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