A case study on applying creative design concepts to brake rotor design

2016 ◽  
Vol 14 (1) ◽  
pp. 2-16
Author(s):  
S. Vinodh ◽  
Sharath Kumar T.
Keyword(s):  
Research Work ◽  
Creative Design ◽  
Content Type ◽  
Design Concepts ◽  
Braking System ◽  
Rotor Design ◽  
Brake Rotor ◽  
Brake Rotors ◽  
Automotive Brake

Purpose – The purpose of this paper is to report a study in which creative design concepts have been applied to automotive brake rotor design. Design/methodology/approach – The literature review on creative design concepts and braking system scenario has been carried out. By studying the existing brake rotors and applying creative design concepts, modified rotor designs have been developed. Findings – The experience gained out of the study indicated that braking efficiency and durability of the braking system can be significantly improved by the adoption of proposed designs. Research limitations/implications – The research has been carried out for an automotive passenger car. The findings of this research work could be extended to similar models of buses and trucks. Practical implications – The usage of the proposed designs reduces the driver’s effort in braking and adds significantly to the life of the rotors. Originality/value – A case study has been reported to indicate the application of creative design concepts for enhancing the efficiency of automotive braking system in cars.

Free Vibration of Coupled Disk-Hat Structures

1999 ◽  
Author(s):  
Jun-Chul Bae ◽  
Jonathan Wickert
Keyword(s):  
Free Vibration ◽  
Natural Frequencies ◽  
Three Dimensional ◽  
Phase Relationship ◽  
Vibration Modes ◽  
Pure Bending ◽  
Brake Rotors ◽  
Automotive Brake ◽  
Ordered Pairs

Abstract The free vibration of disk-hat structures, such as automotive brake rotors, is investigated analytically and through laboratory experimentation. Of particular interest are the role played by the hat element’s depth in influencing the three-dimensional vibration of the disk, and the manner in which the bending and in-plane modes of the disk alone evolve as a hat of increasing depth is incorporated in the model. The lower vibration modes of disk-hat structures are shown to be characterized by the numbers of nodal circles NC and diameters ND present on the disk, as well as the phase relationship between the disk’s transverse and radial displacements due to coupling with the hat element. Such modes map continuously back to the pure bending and in-plane modes of the disk alone, appear in ordered pairs, and can exist at close frequencies. Those characteristics are explored particularly with respect to sensitivities in the disk’s thickness and the hat’s depth with a view towards shifting particular natural frequencies, or minimizing transverse disk motion in certain vibration modes. Results obtained through analysis and measurement of a prototypical disk-hat structure are applied in a case study with a ventilated automotive brake rotor.

A review on advancements in applications of fused deposition modelling process

2020 ◽  
Vol 26 (4) ◽  
pp. 669-687 ◽  
Author(s):  
Sathies T. ◽  
Senthil P. ◽  
Anoop M.S.
Keyword(s):  
Additive Manufacturing ◽  
Research Work ◽  
Rapid Tooling ◽  
Future Research ◽  
Fused Deposition Modelling ◽  
Content Type ◽  
Fused Deposition ◽  
Low Volume ◽  
Customized Products

Purpose Fabrication of customized products in low volume through conventional manufacturing incurs a high cost, longer processing time and huge material waste. Hence, the concept of additive manufacturing (AM) comes into existence and fused deposition modelling (FDM), is at the forefront of researches related to polymer-based additive manufacturing. The purpose of this paper is to summarize the research works carried on the applications of FDM. Design/methodology/approach In the present paper, an extensive review has been performed related to major application areas (such as a sensor, shielding, scaffolding, drug delivery devices, microfluidic devices, rapid tooling, four-dimensional printing, automotive and aerospace, prosthetics and orthosis, fashion and architecture) where FDM has been tested. Finally, a roadmap for future research work in the FDM application has been discussed. As an example for future research scope, a case study on the usage of FDM printed ABS-carbon black composite for solvent sensing is demonstrated. Findings The printability of composite filament through FDM enhanced its application range. Sensors developed using FDM incurs a low cost and produces a result comparable to those conventional techniques. EMI shielding manufactured by FDM is light and non-oxidative. Biodegradable and biocompatible scaffolds of complex shapes are possible to manufacture by FDM. Further, FDM enables the fabrication of on-demand and customized prosthetics and orthosis. Tooling time and cost involved in the manufacturing of low volume customized products are reduced by FDM based rapid tooling technique. Results of the solvent sensing case study indicate that three-dimensional printed conductive polymer composites can sense different solvents. The sensors with a lower thickness (0.6 mm) exhibit better sensitivity. Originality/value This paper outlines the capabilities of FDM and provides information to the user about the different applications possible with FDM.

AlSi-SiC Composites for Automotive Brake Rotor

2020 ◽  
Vol 835 ◽  
pp. 178-185
Author(s):  
Fatma Firouz ◽  
Atef Daoud ◽  
Malak Abou El-Khair
Keyword(s):  
Solution Treatment ◽  
Stir Casting ◽  
Primary Phase ◽  
Casting Method ◽  
Sic Particles ◽  
Brake Rotor ◽  
Eutectic Si ◽  
Sic Composites ◽  
Brake Rotors ◽  
Automotive Brake

This manuscript investigates the Fabrication and Microstructure of Automotive Brake Rotor Made of AlSi-SiC Composites. This work is oriented toward fabrication of automotive brake rotors from Al-9Si and Al-12Si reinforced with 10 and 20% SiC particles using stir-casting method. The brake rotors were subjected to heat treatment. Aging behavior showed that hardness increased with the addition of SiC reinforcements by 104%, comparing to solution treatment condition. Also, the addition of SiC particles accelerates formation of precipitates. Microstructure of brake rotors made of composite revealed uniform distribution of SiC particles, primary phase (⍺-Al) and modified eutectic Si. EDX analysis showed the presence of Al, Mg and O at the interface between matrix and SiC particles.

An integrated fuzzy-based multi-criteria decision-making approach for the selection of an effective manufacturing system

2018 ◽  
Vol 25 (1) ◽  
pp. 280-296 ◽  
Author(s):  
Ram Prakash ◽  
Sandeep Singhal ◽  
Ashish Agarwal
Keyword(s):  
Decision Making ◽  
Manufacturing Systems ◽  
Manufacturing System ◽  
Research Work ◽  
Sustainable Growth ◽  
Multi Criteria Decision Making ◽  
Content Type ◽  
Manufacturing Company ◽  
Selection Of

Purpose The research paper presents analysis and prioritization of barriers influencing the improvement in the effectiveness of manufacturing system. The purpose of this paper is to develop an integrated fuzzy-based multi-criteria decision-making (F-MCDM) framework to assist management of the case company in the selection of most effective manufacturing system. The framework helps in prioritizing the manufacturing systems on the basis of their effectiveness affected by the barriers. Design/methodology/approach In this paper, on the basis of experts’ opinion, five barriers have been identified in a brain-storming session. The problem of prioritization of manufacturing system is a multi-criteria decision-making (MCDM) problem and hence is solved by using the F-MCDM approach using dominance matrix. Findings Manufacturing systems’ effectiveness for Indian industries is influenced by barriers. The prioritization of manufacturing systems depends on qualitative factor decision-making criteria. Among the manufacturing systems, leagile manufacturing system is given the highest priority followed by lean manufacturing system, agile manufacturing system, flexible manufacturing system and cellular manufacturing system. Research limitations/implications The selection of an appropriate manufacturing system plays a vital role for sustainable growth of the manufacturing company. In the present work, barriers which influence the effectiveness of manufacturing system have been identified. On the basis of degree of influence of barriers on the effectiveness of the manufacturing system, five alternative manufacturing systems are prioritized. The framework will help the management of the case company to take reasonable decision for the adoption of the appropriate manufacturing system. Practical implications The results of the research work are very useful for the manufacturing companies interested in analyzing the alternative manufacturing systems on the basis of their effectiveness and their sensitivity toward various barriers. The management of Indian manufacturing company will take decision to adopt a manufacturing system whose effectiveness is least sensitive toward barriers. Effectiveness of such manufacturing system will improve with time without having retardation due to barriers. With improved effectiveness of the manufacturing system, the manufacturing company would be able to survive with global competition. The result of the present work is based on the inputs from the case company and may vary for the other manufacturing company. In the present work, only five alternative manufacturing systems and five barriers have been considered. To obtain the better result, MCDM approach with more number of alternative manufacturing systems and barriers might be considered. Originality/value The research work is based on the fuzzy analytic hierarchy process framework and on the case study conducted by the authors. The work carried out is original in nature and based on the real-life case study.

Sensor-based ambient intelligence for optimal energy efficiency

Sensor Review ◽  
2014 ◽  
Vol 34 (2) ◽  
pp. 170-181 ◽  
Author(s):  
David Robinson ◽  
David Adrian Sanders ◽  
Ebrahim Mazharsolook
Keyword(s):  
Energy Efficiency ◽  
Decision Support ◽  
Energy Consumption ◽  
Energy Management ◽  
Research Work ◽  
Management Systems ◽  
Manufacturing Companies ◽  
Content Type ◽  
Energy Management Systems

Purpose – This paper aims to describe research work to create an innovative, and intelligent solution for energy efficiency optimisation. Design/methodology/approach – A novel approach is taken to energy consumption monitoring by using ambient intelligence (AmI), extended data sets and knowledge management (KM) technologies. These are combined to create a decision support system as an innovative add-on to currently used energy management systems. Standard energy consumption data are complemented by information from AmI systems from both environment-ambient and process ambient sources and processed within a service-oriented-architecture-based platform. The new platform allows for building of different energy efficiency software services using measured and processed data. Four were selected for the system prototypes: condition-based energy consumption warning, online diagnostics of energy-related problems, support to manufacturing process lines installation and ramp-up phase, and continuous improvement/optimisation of energy efficiency. Findings – An innovative and intelligent solution for energy efficiency optimisation is demonstrated in two typical manufacturing companies, within one case study. Energy efficiency is improved and the novel approach using AmI with KM technologies is shown to work well as an add-on to currently used energy management systems. Research limitations/implications – The decision support systems are only at the prototype stage. These systems improved on existing energy management systems. The system functionalities have only been trialled in two manufacturing companies (the one case study is described). Practical implications – A decision support system has been created as an innovative add-on to currently used energy management systems and energy efficiency software services are developed as the front end of the system. Energy efficiency is improved. Originality/value – For the first time, research work has moved into industry to optimise energy efficiency using AmI, extended data sets and KM technologies. An AmI monitoring system for energy consumption is presented that is intended for use in manufacturing companies to provide comprehensive information about energy use, and knowledge-based support for improvements in energy efficiency. The services interactively provide suggestions for appropriate actions for energy problem elimination and energy efficiency increase. The system functionalities were trialled in two typical manufacturing companies, within one case study described in the paper.

Matching volatile demand with transportation services in Vietnam

2015 ◽  
Vol 28 (1) ◽  
pp. 160-174 ◽  
Author(s):  
Albert Tan ◽  
Olli-Pekka Hilmola ◽  
Do Huy Binh
Keyword(s):  
Distribution System ◽  
Demand Uncertainty ◽  
Single Case ◽  
Night Shift ◽  
Research Work ◽  
Service Level ◽  
System Perspective ◽  
Content Type ◽  
Logistics Service

Purpose – Demand for retail transportation is typically volatile, and it is driven by the end of period (month) spiky deliveries. This is especially the case in emerging markets. The purpose of this paper is to examine situation in one of the leading Vietnamese logistics service company with numerous customers within the area of Ho Chi Minh City. Design/methodology/approach – Research work is based on a case study within a company called Gemadept, who is providing logistics services in Vietnam. Researchers were given access to the company data on distribution system, and the authors had collected daily data from transportation operations. Findings – Considerable truck utilization can be achieved even with volatile retail demand environment if optimization is applied to allocate trucks and drivers on certain routes and customer demand points. Relaxing service level of customers shall improve situation further, but not significantly. However, from logistics service point of view, it would be best to use numerous shifts per day (night shift option) to distribute products – this would enable high utilization of distribution fleet while overcoming spiky demand. Research limitations/implications – Analyses are dependent on a single case study of one logistics service provider in Vietnam. While this may limit the findings to some extent, but with rich case data and observations within the company distribution system, it provides the required depth to build an optimized model for the company. Practical implications – In volatile demand environment, it is important to allocate trucks and drivers as well as work schedule in a systematic order, and not based on trial-and-error human intervened timetable. System perspective also enables evaluation of different strategies and their implications on performance. Originality/value – Research work represents one of the seminal studies of Vietnamese retail logistics sector, and verifies that demand uncertainty is high in such environment in addition to exhibiting the end of period demand spikes (hockey stick effect).

scholarly journals From practice to research at Flinders University Library: sustaining a research culture

2018 ◽  
Vol 39 (8/9) ◽  
pp. 615-624 ◽  
Author(s):  
Liz Walkley Hall
Keyword(s):  
Academic Libraries ◽  
Quantitative Methods ◽  
Research Work ◽  
Theory And Practice ◽  
Research Projects ◽  
Research Culture ◽  
Content Type ◽  
Formal Support ◽  
University Library

Purpose The purpose of this paper is to describe the mechanisms used by Flinders University Library to sustain a culture of research. Flinders University Library has been supporting its librarians to undertake research projects using a formal support group mechanism, known as the Research Working Group (RWG), sanctioned and resourced by library executive since 2010. This established a culture of practitioner-based research in the library, with the librarians developing a greater understanding of both the theory and practice of qualitative and quantitative methods by undertaking their own research projects. However, sustaining a research this culture brings new challenges which this paper now explores. Design/methodology/approach This case study describes the methods used at Flinders University Library in sustaining a culture of practitioner-research. This arose from a review of the formal support structure, as well as a previous study that surveyed staff responses to the RWG. Findings As academic libraries face ongoing challenges and engage more broadly with research support, librarians need experiential knowledge of research. In the case of Flinders University Library, the author has found that, in seeking to sustain a research culture, the author has needed to adapt the support mechanisms, including a greater emphasis on peer support, a different model of resourcing and more inclusivity for all staff to engage with research work. Research limitations/implications This paper is limited by its scope as a single-institution case study; however, there are opportunities for other academic libraries to learn from this experience. Originality/value Establishing a culture of practice-based research is not an easy undertaking, requiring dedication from all parties whether management, practitioner-researchers or mentors. While there are many examples in the literature of case studies examining the establishment of research culture, few if any take the next steps to explore how to maintain it. This paper seeks to fill that gap.

A case for the use of cyber-systemics to combat financial crime in Australia

Kybernetes ◽  
2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Brendan Walker-Munro
Keyword(s):  
Law Enforcement ◽  
World Economy ◽  
Design Methodology ◽  
Research Work ◽  
Integrated Approach ◽  
Financial Crime ◽  
Content Type ◽  
Potential Benefits ◽  
Systemic Design

Purpose Financial crime costs the world economy more than $1tn. Yet policing responses continue to apply traditional law enforcement methods to detect, identify and disrupt criminal actors in financial systems. The purpose of this paper is to challenge existing thinking around law enforcement practices in financial crime within an Australian context, by presenting an alternative model grounded in management cybernetics and systemic design (SD), which the author terms “cyber-systemics”. Design/methodology/approach This study reflects on prior research work across cybernetics and SD to suggest an integrated approach as a conceptually useful basis for considering regulation of financial crime, and to demonstrate utility using a case study. Findings The Fintel Alliance between financial crime regulators and financial institutions in Australia demonstrates a strong connection with, and example of, this study’s cyber-systemic regulatory framework. It will be demonstrated that the form of co-design framework offered under cyber-systemics is both consistent with cybernetic and SD literature, but also a means of avoiding regulatory disconnection in times of change and disruption. This study also invites consideration of how future forms of governance might be structured using cyber-systemics as a conceptual backbone. Research limitations/implications This work proposes a novel methodology at odds with traditional law enforcement ways of doing, inevitably requiring a change of regulatory mindset. In addition, this paper is purely conceptual and therefore more research on an empirical basis is required to prove the potential benefits in a real-world regulatory environment. Originality/value This is (to the author’s knowledge) the first conceptual exploration of blending SD and management cybernetics in the field of criminal law regulation.

Contribution of stakeholder theory in the management of environmental quality of Algerian firms

2014 ◽  
Vol 25 (3) ◽  
pp. 335-351 ◽  
Author(s):  
Leila Boubaker ◽  
Mebarek Djebabra ◽  
Saadia Saadi
Keyword(s):  
Stakeholder Theory ◽  
Environmental Quality ◽  
Research Work ◽  
Field Studies ◽  
Suggested Approach ◽  
Environmental Behaviour ◽  
Content Type ◽  
The One

Purpose – The purpose of this paper is to highlight the environmental behaviour of the Algerian firms, on the one hand, and, on the other hand, showing how the involvement of stakeholders may change this behaviour. Design/methodology/approach – In order to set the environmental quality management (EQM), the paper has first been inspired by a mobilisation grid which has allowed the authors to evaluate the degree of dialogue between the stakeholders and the SONATRACH Group which constitutes the case study. Then, the various interviews held at the six sites of this group have allowed to determine the percentage rate of the stakeholders’ mobilisation. Findings – The suggested approach highlights two field studies. First, the aim was to check the mobilisation of the stakeholders of the SONATRACH Group. Then, in order to confirm the importance of mobilising the stakeholders for a better environmental integration, the authors had to evaluate the EQM by measuring the response rate of these stakeholders in percentages. Research limitations/implications – The contribution makes it possible to emphasise the contribution of stakeholder theory in environmental construction based on the mobilisation of stakeholders. Practical implications – In Algeria, some production sites are ranked as polluting. For this research work, the paper has chosen the sites of the SONATRACH multinational. Being conscious of the importance of integrating the environmental dimension, the group has carried out real changes by involving all stakeholders. Originality/value – The objective of this paper is to show the importance of mobilising the stakeholders who play a role in resolving economic and/or environmental issues to help the Algerian firms improve their environmental situation.

Internationalization and governance of Indian family-owned business groups

2019 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Subramanian Shanmugasundaram
Keyword(s):  
Corporate Governance ◽  
Business Groups ◽  
Research Work ◽  
Comparative Case Study ◽  
Future Research ◽  
Case Study Method ◽  
Content Type ◽  
Governance Practices ◽  
The Relationship

Purpose The purpose of this paper is to study the relationship between corporate governance practices and internationalization through foreign direct investments in the context of family-owned business groups in India. Design/methodology/approach The comparative case study method is used to understand the relationship between corporate governance practices and internationalization using four family-owned business groups in India. Findings The ownership concentration negatively influences the internationalization, while transparency has a positive association. Professionalization of management helps in internationalization. Overall, good corporate governance practices have a positive influence on group internationalization. Research limitations/implications This paper provides detailed discussions based on the case study research which would help the future research work on the relationship between corporate governance practices and internationalization. Originality/value The existing literature studies in this field in the context of emerging markets are inconclusive. Hence, this paper uses the case study method to understand the relationship better.

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