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Enriching Systems Theory Based Cyber-Security and Safety Analysis Using Stakeholder Value Networks

MIT-Allen Moulton
Zenuity AB-Amardeep Sidhu
  • Technical Paper
  • 2020-01-0143
To be published on 2020-04-14 by SAE International in United States
System-theoretic process analysis for security (STPA-Sec) is a powerful safety and security analysis method that focuses on unsafe and unsecure interactions between subsystems rather than component failure and its resulting chain-of-event failure modes. The first step of STPA-Sec requires the analyst to identify the system boundary and list the system losses and hazards. Current approach to performing this first and critical step of STPA-Sec requires interviewing the stakeholders and could potentially result in a narrow focus due to stakeholder’s mental model and resulting answers to questions. In some cases, stakeholders are not available for interviews and we risk influencing the system loss identification by the mental model of the analyst. We believe these two potential issues in the STPA-Sec analysis: narrow focus and missing access to stakeholder, can be address by factoring additional system information through stakeholder analysis. To illustrate the benefit of this approach a mining system is considered. Stakeholders in the mining system are identified and then classified based on the role that they play in the expected emergent behavior of the system.…
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Volvo CE showcases 100-ton EC950F excavator, new hybrid assist that cuts fuel use by 15%

SAE Truck & Off-Highway Engineering: February 2020

Ryan Gehm
  • Magazine Article
  • 20TOFHP02_13
Published 2020-02-01 by SAE International in United States

The entrance to Volvo Construction Equipment's ConExpo-Con/Agg exhibit (F3432), through what the company has dubbed “excavator alley,” will lead to the manufacturer's largest excavator offered in North America: the 100-ton (90-tonne) EC950F crawler excavator. The reason Volvo CE is emphasizing its excavator lineup is simple, according to Ray Gallant, VP of sales support: more than half of the units sold in construction equipment are excavators.

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EDITORIAL: ConExpo: Go big or go home

SAE Truck & Off-Highway Engineering: February 2020

Editor-in-Chief-Ryan Gehm
  • Magazine Article
  • 20TOFHP02_06
Published 2020-02-01 by SAE International in United States

My inbox has been inundated with notifications of exciting new construction equipment, power systems, and other advanced technologies to be revealed at the rapidly approaching ConExpo/Con-Agg and IFPE shows in March. For example, as I write this in mid-January, Kubota teases that it is entering a new product segment and will unveil new equipment at the Las Vegas event. And the onslaught will only intensify in the coming weeks.

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Electric Vehicle Power Transfer System Using Conductive Automated Connection Devices Enclosed Pin and Socket Connection

Hybrid - EV Committee
  • Ground Vehicle Standard
  • J3105/3_202001
  • Current
Published 2020-01-20 by SAE International in United States
This document details one of the connections of the SAE J3105 document. The connections are referenced in the scope of the main document SAE J3105. SAE J3105/3 details the enclosed pin and sleeve connection. All the common requirements are defined in the main document; the current document provides the details of the connection. This document covers the main safety and interoperability relevant requirements for an electric vehicle power transfer system using a conductive automated charging device based on an enclosed pin and socket design. To allow interoperability for on-road vehicles (in particular, buses and coaches), one configuration is described in this document. Other configurations may be used for non-standard applications (for example, mining trucks or port vehicles).
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Steering for Off-Road, Rubber-Tired Machines

OPTC1, Personnel Protection (General)
  • Ground Vehicle Standard
  • J1511_201907
  • Current
Published 2019-07-29 by SAE International in United States

This SAE Standard applies to off-road rubber-tired machines having rated speed capability exceeding 20 km/h.

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Clip Fastener Fitting

Hydraulic Hose and Hose Fittings Committee
  • Ground Vehicle Standard
  • J1467_201808
  • Current
Published 2018-08-24 by SAE International in United States
This SAE Standard covers material and dimensional requirements of steel clip fastener fittings. These fittings are intended for use in hydraulic systems on industrial equipment primarily in mining applications.
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SAE AE-7 High Temperature Components Survey, 2005

AE-7B Power Management, Distribution and Storage
  • Aerospace Standard
  • AIR5709A
  • Current
Published 2017-11-30 by SAE International in United States
To present the results of a survey taken concerning future applications for high-temperature electronics and sensors.
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Factors that Impact on Tire Structure Useful Life

VALE S.A.-C.S. VIEIRA
Published 2017-11-07 by SAE International in United States
This work describes a statistic analysis of the service life of tires applied in off-highway trucks used in open-pit mining. Understanding the process of occurrence of structural failures, correlated to the fatigue mechanism and often observed in mechanic components, is of vital importance for the current industry. Since these failures usually happen suddenly, understanding them in the most diverse components submitted to cyclic loads helps analyzing the material’s progressive deterioration along time; it acts as a return to potential improvements in the product, giving feedback of computing simulation data; and it potentially increases operational safety by mitigating the consequences it has on the productive process and on the people exposed to such failures. The tires, components that integrate great part of the on wheels vehicles fleet - amongst them: transportation equipment, industrial mobile equipment and mining equipment - are inserted in this context. Off-highway trucks commonly used in the mining industry, which are also equipped with tires, are submitted to cyclical efforts due to their own operational conditions. These trucks have remote monitoring systems that…
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Diesel Oxidation Catalysts with Ultra-Low NO2 Emissions Supported by Nano-Washcoat on Sintered Metal Fibers

Kuwait University-Osama M. Ibrahim
Published 2017-03-28 by SAE International in United States
Diesel oxidation catalysts with ultra-low NO2 emissions have been developed based on palladium-tungsten (Pd-W). The catalysts are supported by aluminum-yttrium oxides (Al2O3-Y2O3) nano-washcoat on sintered metal fibers. Elemental composition analysis was performed using Energy Dispersive Spectroscopy (EDS) to quantify the distribution of the Al2O3-Y2O3 nano-washcoats and Pd-W catalysts on the surface of the metal fibers. Initially, emissions measurements were conducted to evaluate the performance of Pd-W catalysts using small coated samples of sintered metal fibers. The results show that the catalysts selectively oxidize CO into CO2 and reduce NO2 into NO, resulting in over 90% reduction in CO emissions and up to 85% reduction in NO2 emissions. Scale-up of an Active Diesel Particulate Filter (ADPF) was then tested on a Cummins 5.9L ISB diesel engine using the US-FTP transient test cycle and the ISO 8178 8-mode test cycle. The results of both test cycles yielded similar emissions reductions of 54% and 57% in CO, 84% and 81% in HC, 95% and 91% in PM, for the US-FTP and 8-mode test cycles, respectively. Both test cycles…
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Methodology for the Effective Stabilization of Tin-Oxide-Based Oxidation/Reduction Catalysts

  • Magazine Article
  • TBMG-26349
Published 2017-02-01 by Tech Briefs Media Group in United States

NASA Langley researchers, in work spanning more than a decade, have developed a portfolio of technologies for low-temperature gas catalysis. Originally developed to support space-based CO2 lasers, the technology has evolved into an array of performance capabilities and processing approaches, with potential applications ranging from indoor air filtration to automotive catalytic converters and industrial smokestack applications. The technology has been used commercially in systems that provide clean air to racecar drivers, as well as incorporated into commercially available filtration systems for diesel mining equipment. Backed with extensive research on these technologies, NASA welcomes interest in the portfolio for other commercial and industrial applications.