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2015-04-14
Journal Article
2015-01-1526
Yasuyuki Onishi, Thomas Ramsay, Timothy Juan, James McKillen
Abstract A sports car exhibits many challenges from an aerodynamic point of view: drag that limits top speed, lift - or down force - and balance that affects handling, brake cooling and insuring that the heat exchangers have enough air flowing through them under several vehicle speeds and ambient conditions. All of which must be balanced with a sports car styling and esthetic. Since this sports car applies two electric motors to drive front axle and a high-rev V6 turbo charged engine in series with a 9-speed double-clutch transmission and one electric motor to drive rear axle, additional cooling was required, yielding a total of ten air cooled-heat exchangers. It is also a challenge to introduce cooling air into the rear engine room to protect the car under severe thermal conditions. This paper focuses on the cooling and heat resistance concept.
2015-04-14
Journal Article
2015-01-0168
Steffen Lampke, Simon Schliecker, Dirk Ziegenbein, Arne Hamann
Abstract The underlying theories of both control engineering and real-time systems engineering assume idealized system abstractions that mutually neglect central aspects of the other discipline. Control engineering theory, on the one hand, usually assumes jitter free sampling and constant input-output latencies disregarding complex real-world timing effects. Real-time engineering theory, on the other hand, uses abstract performance models that neglect the functional behavior, and derives worst-case situations that have little expressiveness for control functionalities in physically dominated automotive systems. As a consequence, there is a lot of potential for a systematic co-engineering between both disciplines, increasing design efficiency and confidence. We have taken a standard control-engineering tool, Simulink, and combined it with state-of-the-art real-time system design and analysis tools, SymTA/S and TraceAnalyzer from Symtavision.
2015-04-07
Magazine
GM’s CTO driving new paths to technology leadership 'We’re making actual production commitments regarding our advanced-technology strategy, rather than just talking about it,' says GM’s CTO Jon Lauckner. 'We’re absolutely going to be among the leaders, if not the leader, in these areas.' Aluminum prepares for its next big leap Ford’s F-Series blockbuster was just the beginning. New micromills now in pilot phase aim to bring vastly stronger and more formable light-alloy materials at higher capacity, says Alcoa’s Mike Murphy. Slick solutions for friction reduction From new lubricants to ‘smart’ oil pumps and clever bearing technologies, engine designers are attacking every potential source of spin losses and internal friction in the quest for more mechanical work out of less fuel. Next-gen NSX: a twin-turbo, multi-material Ferrari-fighter The production NSX made its much-awaited global debut at NAIAS in January.
2015-04-01
Magazine
Deep thinking about deep space NASA is mining the rich fields of knowledge and creativity in the minds of university students to improve living and working conditions in space. Rise of the underdogs Problem-plagued effort last year spurs Baja SAE team from VIT University of India to overhaul itself and its car. Materials, data-aq packages among choices touted in Collegiate Cup contest Central Michigan’s Baja team, which did some impressive materials analyses, takes home the SAE Mid-Michigan Section’s trophy as part of that professional group’s Engineers Week activities. Toyota looks for more from college students than high GPA "Those that participate in an SAE related-activity display passion for the automotive industry, and these candidates are ideal for our organization."
2015-03-30
Technical Paper
2015-01-0094
Supakit Rooppakhun, Pornporm Boonporm, Worawat Puangcha-um
Abstract In this study, the method of analyzing the thin-wall crashing box of impact attenuator for student formula is proposed by the means of simulation and validation following Formula Society of Automotive Engineers-SAE rules. The analysis was performed based on computerized simulation software for calculated the absorption capacity of the simple and multiple cell of thin-walled tubes. The effect of thin-wall thickness consisted of 1.2 mm, 1.6 mm and 2.0 mm was also evaluated. The simulation results as energy absorption, crashing force efficiency, and absorbed energy per unit mass were identified among nine patterns. According to the results, the increase of interior cell number and the wall thickness contribute the absorbed energy ability. However, the increment of wall thickness lead to the increase of crashing force magnitude. Regarding the kinetic energy, a 2×2 multiple cell box with the thickness of 2 mm is designated for construction and verify.
2015-03-27
Standard
J1254_201503
This SAE Standard includes names of major components and parts peculiar to this type of machine. Illustrations used here are not intended to include all existing commercial machines or be exactly descriptive of any particular machine. They have been provided to describe the principles to be used in applying this document.
2015-03-27
Standard
J2129_201503
This SAE Information Report lists the method which outside sources will follow when submitting documents for origination or review by the SAE CONAG Council.
2015-03-24
WIP Standard
J3092
The purpose of this document is to provide information and guidelines for use by automotive designers, test engineers and policymakers with…
2015-03-12
Standard
AS9016A
The aviation, space, and defense industries rely on the development and manufacture of complex products comprised of multiple systems, subsystems, and components each designed by individual designers (design activities) at various levels within the supply chain. Each design activity controls various aspects of the configuration and specifications related to the product. When a change to design information is requested or required, the change has to be evaluated against the impacts to the higher-level system. Proposed changes to design information that the design activity identifies to be minor and have no effect on their product requirements or specifications have the potential to be concurrently implemented and approved, where authorized to do so. Changes that affect customer mandated requirements or specifications must be approved prior to implementation.
2015-03-11
Article
Collaborative projects between OEMs can be surprising, as evidenced by the Daimler and Renault-Nissan link and its latest A-segment products — said to be the first of more joint developments.
2015-03-10
Technical Paper
2015-01-0073
Hayden Charles Smith, Sam Paterson, Clara Mazzone, Sammy Diasinos, Graham Doig
Abstract The Sunswift Solar Car project has been running at UNSW Australia in Sydney for 20 years as of 2015. It is an entirely student-run endeavour which revolves around the design and development of a solar/electric vehicle nominally designed to compete in the World Solar Challenge rally from Darwin to Adelaide every 2 years. The student cohort is drawn from a range of schools, disciplines and backgrounds, and the team has been increasingly successful and high-profile particularly in its second decade. The excellent level of hands-on training that the project provides to students is not rewarded with academic credit yet many of the alumni credit the project with launching their careers and ambitions. The team's world record-breaking latest vehicle, eVe, is the fifth constructed and presents a radical departure from previous cars in that it carries a passenger in a conventional layout and is based around a road-going sports car.
2015-03-05
Book
This valuable resource lists all Aerospace Standards (AS), Aerospace Recommended Practices (ARP), Aerospace Information Reports (AIR), and Aerospace Resource Documents (ARD) published by SAE. Each listing includes title, subject, document number, key words, new and revised documents, and DODISS-adopted documents. AMS Index - Now Available!
2015-02-26
WIP Standard
AS6171/5
The intent of this document is to define the methodology for suspect parts inspection using radiological inspection. The purpose of radiology for suspect counterfeit part inspection is to detect deliberate misrepresentation of a part, either at the part distributor or OEM level. Radiological inspection can also potentially detect unintentional damage to the part resulting from improper removal of part from assemblies, which may include, but not limited to, prolonged elevated temperature exposure during desoldering operations or mechanical stresses during removal. Radiological inspection of electronics includes film radiography and filmless radiography such as digital radiography (DR), real time radiography (RTR), and computed tomography (CT). Radiology is an important tool used in part authentication of microelectronic devices. Radiographic analysis is performed on parts to verify that the internal package or die construction is consistent with an exemplar item.
2015-02-26
WIP Standard
AS6171/2
This documenet describes the requirements of the following test methods for counterfeit detection of electronic components; General External Visual Inspection (EVI), Detailed External Visual Inspection, Remarking and Resurfacing, Lead Finish Analysis, SEM Surface Analysis.
2015-02-26
WIP Standard
AS6171/11
This method outlines the requirements, capabilities, and limitations associated with the application of Design Recovery to the detection of counterfeit electronic parts including: Operator training; Sample preparation; Imaging techniques; Data interpretation; Design/functional matching including pass/fail criteria; Equipment maintenance and; Reporting of data. The method is primarily aimed at analyses performed by circuit delayering and imaging with a scanning electron microscope or optical microscope; however, many of the concepts are applicable to other microscope and probing techniques to recover design data.
2015-02-26
WIP Standard
AS6171/6
Through the use of ultra-high frequency ultrasound, typically above 10 MHz, Acoustic Microscopy (AM) non-destructively finds and characterizes physical features and latent defects (visualization of interior features in a layer by layer process) — such as material continuity, sub-surface flaws, cracks, voids, delaminations and porosity. AM observed features and defects can be indicators that the components were improperly handled, stored, altered or previously used.
2015-02-26
WIP Standard
AS6171/4
This method standardizes inspection and test procedures and minimum training and certification requirements to detect Suspect, Fraudulent, & Counterfeit (SFC) Electrical, Electronic, and Electromechanical (EEE) components or parts utilizing Delid/Decapsulation Physical Analysis. The requirements of this document are employed to either delid or remove the cover from a hermetically sealed package or to remove the outer protective coating or encapsulation of an EEE Part, in order to examine the internal structure to determine if the part appears authentic. Information derived may be used to: a. preclude installation of inauthentic parts or parts having obvious or latent defects b. aid in disposition of parts that exhibit anomalies c. aid in defining improvements or changes in design, materials, or processes d. evaluate Supplier production trends. NOTE: This test method should not be confused with Destructive Physical Analysis as defined in MIL-STD-1580.
2015-02-26
WIP Standard
AS6171/1
This document describes an evaluation method which measures the effectiveness of a specified test plan used to screen for counterfeit parts. The method includes the determination of the types of defects detected using a specified test plan along with the related counterfeit type coverage. The output of this evaluation will produce the counterfeit defect coverage (CDC), the not-covered defects (NCD), the under-covered defects (UCD), and the counterfeit type coverage (CTC). This information will be supplied to the test laboratory’s customer in both the test report and the Certificate of Quality Conformance. This evaluation method does not address the effectiveness of detecting tampered type devices.
2015-02-26
WIP Standard
AS6171/3
XRF technique for counterfeit detection is applicable to electronic and other parts as listed in the AS6171 General Requirements. In general, the detection technique is meant for use on piece parts prior to assembly on a circuit board or on the parts that are removed from a circuit board. The applicability spans a large swath of active, passive and electromechanical parts.
2015-02-26
Standard
J1272_201502
This SAE Standard is intended to describe the basic types of felling heads, including those with bunching capabilities, that are attachments to a self-propelled machine. Only the major components that are necessary to describe the functions to the felling head, and to apply the principles of the recommended practice are included. Illustrations used are not intended to include all existing felling heads or to describe any particular manufacturer's variation.
2015-02-26
WIP Standard
AS6171/10
This test method provides the capabilities, limitations, and suggested possible applications of TGA as it pertains to the detection of counterfeit electronic components. Additionally, this document outlines requirements associated with the application of TGA including, equipment requirements, test sample requirements, methodology, control and calibration, data analysis, reporting, and qualification and certification.
2015-02-26
WIP Standard
AS6171/8
To define capabilities and limitations of Raman spectroscopy as it pertains to counterfeit detection of EEE parts and suggest possible applications to these ends. Additionally, this document outlines requirements associated with the application of Raman spectroscopy including: Operator training; Sample preparation; Data interpretation; Computerized spectral matching including pass/fail criteria; Equipment maintenance and; Reporting of data.
2015-02-26
WIP Standard
AS6171/9
This document defines capabilities and limitations of FTIR as it pertains to counterfeit electronic component detection and suggests possible applications to these ends. Additionally, this document outlines requirements associated with the application of FTIR including: operator training, sample preparation, various sampling techniques, data interpretation, computerized spectral matching including pass/fail criteria, equipment maintenance, and reporting of data. The discussion is primarily aimed at analyses performed in the mid-infrared (IR) from 400 to 4000 wavenumbers; however, many of the concepts are applicable to the near and far IR.
2015-02-26
WIP Standard
AS6171/7
The scope of this document is to: 1. Specify techniques to detect suspect SFC parts using electrical testing. 2. Provide various levels of electrical testing that can be used by end user to define test plans for detecting SFC parts. 3. Provide guidelines to end users for determining which test houses have the necessary capabilities. (i.e., equipment, procedures and protocols) for performing electrical testing for authenticity analysis.
2015-02-23
WIP Standard
J1939/84
The purpose of this Recommended Practice is to verify that vehicles and/or components are capable of communicating a required set of information, in accordance with the diagnostic messages specified in SAE J1939-73, to fulfill the off-board diagnostic tool interface requirements contained in the government regulations cited below. This document describes the tests, methods, and results for verifying diagnostic communications from an off board diagnostic tool (i.e., scan tool) to a vehicle and/or component. SAE members have generated this document to serve as a guide for testing vehicles for compliance with ARB and other requirements for emissions-related on-board diagnostic (OBD) functions for heavy duty engines used in medium and heavy duty vehicles. The development of HD OBD regulations by US EPA and California’s Air Resources Board (ARB) require that diagnostic message services are exercised to evaluate diagnostic communication standardization requirements on production vehicles.
2015-02-18
Standard
J1939/84_201502
The purpose of this Recommended Practice is to verify that vehicles and/or components are capable of communicating a required set of information, in accordance with the diagnostic messages specified in SAE J1939-73, to fulfill the off-board diagnostic tool interface requirements contained in the government regulations cited below. This document describes the tests, methods, and results for verifying diagnostic communications from an off board diagnostic tool (i.e., scan tool) to a vehicle and/or component. SAE members have generated this document to serve as a guide for testing vehicles for compliance with ARB and other requirements for emissions-related on-board diagnostic (OBD) functions for heavy duty engines used in medium and heavy duty vehicles. The development of HD OBD regulations by US EPA and California’s Air Resources Board (ARB) require that diagnostic message services are exercised to evaluate diagnostic communication standardization requirements on production vehicles.
2015-02-17
Magazine
Next-generation GDI Will new efficiency and emissions rules mean major changes for gasoline direct-injection technology? Hard to answer Technical and personal issues make it challenging to link smartphones to vehicles. Composite design optimization for automated fiber placement Coriolis Composites and SAFRAN Aircelle worked together on a thrust reverser component demonstrator made with carbon-fiber-reinforced plastic (CFRP) material and an AFP process. Making virtual design a reality A new virtual design approach for commercial vehicle concepts allows for purposeful design and integration of new concepts and technologies on the component level in an existing product portfolio, while not neglecting the need for standardization and modularity.
2015-02-13
Article
General Motors' Fuel Cell Chief Engineer revealed some interesting technical developments during the recent 2015 SAE Hybrid and EV Technology Symposium.
2015-02-05
Standard
AS13003
This standard defines the minimum requirements for conducting Measurement Systems Analysis (MSA) for variable and attribute assessment on characteristics as defined on the drawing or specification. It does not define the detailed analytical methods for each type of study as these can be found in existing published texts (see Section 2 for guidance).
Viewing 61 to 90 of 13118

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