Reducing scrapping of gears by assessment of tip contact threshold torque

2021 ◽  
pp. 135065012110662
Author(s):  
Rikard Hjelm ◽  
Aylin Ahadi ◽  
Jens Wahlström
Keyword(s):  
Sustainable Development ◽  
Energy Consumption ◽  
Sustainable Development Goals ◽  
Measured Data ◽  
Manufacturing Error ◽  
Torque Curve ◽  
Development Goals ◽  
Automotive Powertrain ◽  
Competitive Products

While striving for more competitive products as well as reaching the Global Sustainable Development Goals, automotive powertrain manufacturers increase the demands on gears, which translates to decreased manufacturing error tolerances. Too tight tolerances may, however, counteract the goal if it leads to increased material and energy consumption due to unjustified scrapping. This paper presents a method to prevent unjustified scrapping by comparing the severity of different manufacturing error tolerances by means of the tip contact threshold torque. Curve fits are shown to be accurate and helpful to assess the outcome of a produced batch of gears. A case study is made where the method is used with measured data from the industry. It can be concluded from the investigation that considerable amounts of scrapping can be avoided by consideration of the threshold torque.

scholarly journals Using citizen science data to monitor the Sustainable Development Goals: a bottom-up analysis

2021 ◽  
Author(s):  
Laura Ballerini ◽  
Sylvia I. Bergh
Keyword(s):  
Sustainable Development ◽  
Citizen Science ◽  
Sustainable Development Goals ◽  
Comparative Case Study ◽  
Science Data ◽  
The Sustainable Development ◽  
Case Study Analysis ◽  
Wide Range ◽  
Development Goals

AbstractOfficial data are not sufficient for monitoring the United Nations Sustainable Development Goals (SDGs): they do not reach remote locations or marginalized populations and can be manipulated by governments. Citizen science data (CSD), defined as data that citizens voluntarily gather by employing a wide range of technologies and methodologies, could help to tackle these problems and ultimately improve SDG monitoring. However, the link between CSD and the SDGs is still understudied. This article aims to develop an empirical understanding of the CSD-SDG link by focusing on the perspective of projects which employ CSD. Specifically, the article presents primary and secondary qualitative data collected on 30 of these projects and an explorative comparative case study analysis. It finds that projects which use CSD recognize that the SDGs can provide a valuable framework and legitimacy, as well as attract funding, visibility, and partnerships. But, at the same time, the article reveals that these projects also encounter several barriers with respect to the SDGs: a widespread lack of knowledge of the goals, combined with frustration and political resistance towards the UN, may deter these projects from contributing their data to the SDG monitoring apparatus.

scholarly journals Revitalizing the Global Alliances for Sustainable Development: Analyzing the Viability of Sustainable Development Goal 17—A Multi-Actor Governance Approach

2021 ◽  
Vol 13 (8) ◽  
pp. 4247
Author(s):  
Elena Bulmer ◽  
Cristina del Prado-Higuera
Keyword(s):  
Sustainable Development ◽  
Sustainable Development Goals ◽  
Marine Conservation ◽  
Structured Interviews ◽  
Sustainable Development Goal ◽  
Development Goal ◽  
Global Partnership ◽  
Development Goals ◽  
Common Vision

The seventeenth Sustainable Development Goal of the United Nations, Partnerships for the Goals, aims to strengthen the means of the implementation and revitalize the global partnership for sustainable development. The successful implantation of the UN’s seventeenth Sustainable Development Goal will aid the execution and achievement of the other sixteen goals. This article explores the importance and viability of Sustainable Development Goal 17, using a case study based in Valencia, Spain. The study presents an illustrative stakeholder situation, where we see that there are conflicting interests among conservationists, fishermen, municipality representatives, and others. Data collection was done using desk-based research and semi-structured interviews. The interview process was performed between October 2018 and October 2019. In total, 21 different stakeholders were interviewed. For the data analyses, a stakeholder register, Power–Interest Matrices, and a stakeholder map were used, and, to complement the latter, narratives were developed. The different analyses showed that most project stakeholders supported the project, while there was really only one stakeholder, the fishermen themselves, who were reticent about participating. However, it was shown over time that, by developing a common vision with them, the fishermen came on board the project and collaborated with the scientists. Stakeholder engagement analyses are especially useful in the application of Sustainable Development Goals at the project level. Although this case study is specifically applicable to a marine conservation context, it may be extrapolated and applied to any other Sustainable Development Goals’ context.

scholarly journals Household food security of rainfed-rice farmers in Sragen District to achieve sustainable development goals

2021 ◽  
Vol 905 (1) ◽  
pp. 012064
Author(s):  
M N Mu’afa ◽  
S Marwanti ◽  
W Rahayu
Keyword(s):  
Sustainable Development ◽  
Food Security ◽  
Energy Consumption ◽  
Sustainable Development Goals ◽  
Rice Fields ◽  
Household Food Security ◽  
Consumption Level ◽  
Rainfed Rice ◽  
Household Food ◽  
Development Goals

Abstract Goal 2 of the Sustainable Development Goals is Zero Hunger or ensure food security in the world. This study aims to determine households’ food security in Sragen District using descriptive and analytical methods with survey techniques. The research was conducted in Gemolong Sub-district, Sragen District. The determination of village samples is done deliberately (purposive) considering the largest rainfed rice fields. The data analysis used is the analysis of energy consumption and household food security. The results showed that the energy consumption of farmers’ households amounted to 6,041 kcal/day with an energy sufficiency value of 5,368 kcal/day, then obtained energy consumption level of 113% and classified in the category of high level because energy consumption level ≥ 100%. Household food security conditions showed that 53.33% were food resistant households and 46.67% were food vulnerable. Increasing production and household income by optimizing drill wells to ensure water availability or procurement of seeds resistant to rainfed rice fields can address vulnerable food situations.

scholarly journals Brazilian Hydropolitics under the United Nations 2030 Agenda

2020 ◽  
Vol 21 ◽  
Author(s):  
Isabela Battistello Espindola ◽  
Maria Luisa Telarolli de Almeida Leite ◽  
Luis Paulo Batista da Silva
Keyword(s):  
Sustainable Development ◽  
United Nations ◽  
Sustainable Development Goals ◽  
Well Being ◽  
2030 Agenda ◽  
Development Agenda ◽  
Development Goals ◽  
The United Nations

The global framework set forth by the United Nations 2030 Agenda and its Sustainable Development Goals (SDG) include water resources in their scope, which emphasizes how water assets and society well-being are closely intertwined and how crucial they are to achieving sustainable development. This paper explores the role of hydropolitics in that Post-2015 Development Agenda and uses Brazilian hydropolitics set to reach SDG6 as a case study.

scholarly journals Convergences between the Social and Solidarity Economy and Sustainable Development Goals: Case Study in the Basque Country

2020 ◽  
Vol 12 (13) ◽  
pp. 5435
Author(s):  
Unai Villalba-Eguiluz ◽  
Andoni Egia-Olaizola ◽  
Juan Carlos Pérez de Mendiguren
Keyword(s):  
Sustainable Development ◽  
Gender Equity ◽  
Sustainable Development Goals ◽  
Local Development ◽  
Basque Country ◽  
Solidarity Economy ◽  
Trade Offs ◽  
The Social ◽  
Development Goals

This article analyzes the potential of the social and solidarity economy (SSE) to foster the sustainable development goals (SDGs). Local public policies play an important role in supporting both the SSE and SDGs. We select a case study of four SSE projects of a local development agency in the Basque Country, where the SSE has a considerable presence through diverse forms and experiences. We address how these projects, which are implemented in a coordinated and transversal manner, contribute to many specific targets within SDG goals number 8 (growth and decent work), 12 (sustainable consumption and production patterns), and 5 (gender equity). However, some limitations have also been identified: (i) trade-offs, in both SSE and SDGs, between economic growth and other aims centered on environmental sustainability; and (ii) avoidance of handling issues, which limits a systemic transformation.

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