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1990-02-01
Technical Paper
900032
Toshihiko Osumi, Koji Onishi, Hidetoshi Nobumoto, Kazutoyo Watanabe, Junichi Funamoto
The power output performance of the rotary engine can be improved when the dynamic effects of intake and exhaust systems are utilized. Previous studies have shown that one-dimensional gas exchange process simulations are effective in developing these systems. However, this type of simulation is difficult to apply to the peripheral port type rotary engine because of the simultaneous gas exchange between one port and two combustion chambers. To account for this, a boundary model connecting the pipe and plenum chambers was developed. This study shows the validity of this new model and the successful application of the simulation to the engine.
CURRENT
2010-10-25
Standard
AIR5686
This Aerospace Information Report (AIR) addresses the subject of aircraft inlet-swirl distortion. A structured methodology for characterizing steady-state swirl distortion in terms of swirl descriptors and for correlating the swirl descriptors with loss in stability pressure ratio is presented. The methodology is to be considered in conjunction with other SAE inlet distortion methodologies. In particular, the combined effects of swirl and total-pressure distortion on stability margin are considered. However, dynamic swirl, i.e., time-variant swirl, is not considered. The implementation of the swirl assessment methodology is shown through both computational and experimental examples. Different types of swirl distortion encountered in various engine installations and operations are described, and case studies which highlight the impact of swirl on engine stability are provided. Supplemental material is included in the appendices.
CURRENT
2017-11-21
Standard
AIR5867
This report revises ARD50015 document to the AIR format. This report, as was the original, is intended to complement ARP1420C and AIR1419C documents issued by the SAE S-16 Committee on spatial total-pressure distortion. These previous documents addressed only total-pressure distortion and excluded total temperature distortion. The subject of inlet total temperature distortion is addressed in this report with some background and identification of the problem area. The status of past efforts is reviewed, and an attempt is made to define where we are today. Deficiencies, voids, and limitations in knowledge and test techniques for total temperature distortion are identified.
CURRENT
2006-09-18
Standard
J1269_200609
This SAE Recommended Practice applies to the laboratory measurement of rolling resistance of pneumatic passenger car, light truck, and highway truck and bus tires. The procedure applies only to the steady-state operation of free-rolling tires at zero slip and inclination angles; it includes the following three basic methods:
CURRENT
2009-01-15
Standard
J1739_200901
This FMEA Standard describes Potential Failure Mode and Effects Analysis in Design (DFMEA) and Potential Failure Mode and Effects Analysis in Manufacturing and Assembly Processes (PFMEA). It assists users in the identification and mitigation of risk by providing appropriate terms, requirements, ranking charts, and worksheets. As a Standard, this document contains requirements “must” and recommendations “should” to guide the user through the FMEA process. The FMEA process and documentation must comply with this Standard as well as any corporate policy concerning this Standard. Documented rationale and agreement with the customer is necessary for deviations in order to justify new work or changed methods during customer or third-party audit reviews.
HISTORICAL
2000-06-01
Standard
J1739_200006
This SAE Recommended Practice was jointly developed by Chrysler, Ford and General Motors under the sponsorship of the United States Council for Automotive Research (USCAR). This document introduces the topic of potential Failure Mode and Effects Analysis (FMEA) and gives general guidance in the application of the technique. An FMEA can be described as a systemized group of activities intended to: (a) recognize and evaluate the potential failure of a product/process and its effects, (b) identify actions which could eliminate or reduce the chance of the potential failure occurring, and (c) document the process. It is complementary to the design process of defining positively what a design must do to satisfy the customer.
2014-08-07
WIP Standard
J1739
This FMEA Standard describes Potential Failure Mode and Effects Analysis in Design (DFMEA) and Potential Failure Mode and Effects Analysis in Manufacturing and Assembly Processes (PFMEA). It assists users in the identification and mitigation of risk by providing appropriate terms, requirements, ranking charts, and worksheets. As a Standard, this document contains requirements "must" and recommendations "should" to guide the user through the FMEA process. The FMEA process and documentation must comply with this Standard as well as any corporate policy concerning this Standard. Documented rationale and agreement with the customer is necessary for deviations in order to justify new work or changed methods during customer or third-party audit reviews.
HISTORICAL
2002-08-02
Standard
J1739_200208
This SAE Recommended Practice was jointly developed by DaimlerChrysler Corporation, Ford Motor Company, and General Motors Corporation. This document introduces the topic of potential Failure Mode and Effects Analysis (FMEA) and gives general guidance in the application of the technique. An FMEA's focus on the design, whether it be of the product, the process or the machinery used to buid the product. 1. Check the box Reg Required? to make it active An applications Section (see Section 5) has been added to provide information on applying the FMEA technique to plant machinery and equipment using the Machinery FMEA (MFMEA).
HISTORICAL
1994-07-01
Standard
J1739_199407
This SAE Recommended Practice was jointly developed by Chrysler, Ford and General Motors under the sponsorship of the United States Council for Automotive Research (USCAR). This document introduces the topic of potential Failure Mode and Effects Analysis (FMEA) and gives general guidance in the application of the technique. An FMEA can be described as a systemized group of activities intended to: (a) recognize and evaluate the potential failure of a product/process and its effects, (b) identify actions which could eliminate or reduce the chance of the potential failure occurring, and (c) document the process. It is complementary to the design process of defining positively what a design must do to satisfy the customer.
2011-03-31
Magazine
A new model for University research The robotics team at Carnegie Mellon University innovates with a new approach for the funding and commercialization of University research. Automotive and Aerospace engineering education: today and tomorrow Student opportunites in specialized programs continue to grow. Lamborghini is bullish about new flagship Of all the models making their world debut at the 2011 Geneva Motor Show, Lamborghini's Aventador LP 700-4 could claim top honors for new technology. B-Max launches downsized EcoBoost engines The small B-Max MAV uses familiar Ford "kinetic" design cues. Diesel/electric-drive military vehicle at Chicago auto show A military vehicle is designed to perform specific missions, not serve as an environmental showcase.
2011-10-28
Magazine
Running on fumes The trials and tribulations of a team of engineers as it strives to build a high-mileage vehicle from the ground up. BYU team brings clean water to Tanzania For its capstone project, a Brigham Young University team designed and implemented a human-powered drill with motorized functionality to provide the much-needed resource to remote populations in Africa. Mizzou Engineering Electric Car Club contributes to national safety effort University of Missouri students gather data for hybrid and electric vehicle first responder materials. Hyundai introduces Veloster The new coupe is obviously something different from a styling standpoint, and a second rear-access door on the passenger's side just adds to that distinction.
HISTORICAL
1998-06-01
Standard
J2344_199806
This SAE Information Report identifies and defines the preferred technical guidelines relating to safety for Electric Vehicles (EVs) during normal operation and charging. Guidelines in this document do not necessarily address maintenance, repair, or assembly safety issues. The purpose of this SAE Information Report is to provide introductory safety guidelines information that should be considered when designing electric vehicles for use on public roadways. This document covers electric vehicles having a gross vehicle weight rating of 4536 kg (10 000 lb) or less that are designed for use on public roads.
CURRENT
2010-03-05
Standard
J2344_201003
This SAE Information Report identifies and defines the preferred technical guidelines relating to safety for vehicles that contain High Voltage (HV), such as Electric Vehicles (EV), Hybrid Electric Vehicles (HEV), Plug-In Hybrid Electric Vehicle (PHEV), Fuel Cell Vehicles (FCV) and Plug-In Fuel Cell Vehicles (PFCV) during normal operation and charging, as applicable. Guidelines in this document do not necessarily address maintenance, repair, or assembly safety issues.
CURRENT
2017-11-29
Standard
AS5443B
CURRENT
2017-08-09
Standard
AS1708G
CURRENT
2017-08-28
Standard
AS13004
This standard defines requirements for the identification, assessment, mitigation, and prevention of risk in the manufacturing process through the application of Process Flow Diagrams (PFDs), Process Failure Mode and Effects Analysis (PFMEA) and Control Plans throughout the life cycle of a product. This standard aligns and collaborates with the requirements of AS9100, AS9102, AS9103, and AS9145. The requirements specified in this standard apply in conjunction with and are not alternative to contractual and applicable statutory and regulatory requirements. In case of conflict between the requirements of this standard and applicable statutory or regulatory requirements, the latter shall take precedence.
CURRENT
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).
CURRENT
2014-07-22
Standard
AS9968
This AS describes a standard method for viscosity measurements of thickened (AMS1428) anti-icing fluids. Fluid manufacturers may publish alternate methods for their fluids. In case of conflicting results between the two methods, the manufacturer method takes precedence. To compare viscosities, exactly the same measurement elements (including spindle and container size) must have been used to obtain those viscosities.
HISTORICAL
2001-10-01
Standard
AS5498
The objective of this Minimum Operational Performance Specification is to specify the minimum performance of onboard inflight icing detection systems. Throughout the document, these devices are referred to as Flight Icing Detection Systems (FIDS). These systems are intended to either provide information which indicates the presence of ice accreted in flight on monitored surfaces or indicate the presence of icing conditions in the atmosphere. They may operate the airplane anti-ice/ deice systems. Detection of ice accreted on the ground is not considered in this document but can be found in ED-104. This MOPS was written for the use of FIDS on airplanes only, as defined in paragraph 1.5. Use on other aircraft may require additional considerations. Chapter 1 of this document provides information required to understand the need for the equipment characteristics and tests defined in the remaining chapters.
Anytime
Training / Education On Demand On Demand Course
How do you know when there’s a problem in a given situation? Once discovered, how do you approach solving the problem? In this course, you’ll be provided basic steps for how to define a problem and an approach for solving that problem using a proven methodology. You’ll explore how a problem can be viewed as an opportunity for improvement and how a solution to a problem can be leveraged within different areas of your organization. Effective problem solving isn’t just a quality function, and it's not just for operations or engineering. Effective problem solving is a valuable skill set needed throughout an organization.
Anytime
Training / Education On Demand On Demand Course
Weibull Analysis is the starting point for solving most issues related to product reliability, maintainability, supportability, quality, safety, test planning, and cost control. Weibull Analysis is popular worldwide as the best method for modeling and predicting variability and failure of designs, products, and systems. Instructor Wes Fulton will provide a solid overview of Weibull Solution Methods including an explanation of 16 additional Weibull Analysis capabilities, or Weibull Extensions.
CURRENT
2017-09-19
Standard
J1857_201709
Although not limited to, these flywheels are normally used on trucks considered as Medium-Duty (Class 6 and 7), as well as Heavy-Duty (Class 8) trucks.
2011-11-03
Magazine
Tier 4 for large bore Engineers show that a pre-turbine aftertreatment system offers clear and distinct benefits in terms of compact, cost-effective emissions reductions. Programmed for safety and reliability The software that adds features and functions is becoming more reliable as standards and new techniques transform design processes. Electrohydraulics improve with new lift-control strategy Fuel consumption, torque delivery, and emissions can all be improved through flexible control of the valve timing, duration, and lift.
2011-09-01
Magazine
The man challenges of Tier 4 engineering Cutting and controlling emissions are the surface goals, but designers must also manage to cut and control costs, while adding complexity. A cool look at heat protection CFD is used to predict flow and thermal fields within the engine compartment both at steady state and transient conditions. Hushing hydraulics Researchers from the Georgia Institute of Technology put their energies into novel, compact devices for reducing fluid-borne noise.
2012-11-14
Magazine
Gradually going green The number of commercial airplanes globally is expected to double by 2030, but will there be enough fuel to keep them flying? 57 channels and everything's on Radios handle more frequencies as well as visual inputs, forcing developers to employ many design strategies. Surmounting modeling pitfalls A look at software tools that aid in the efficient model-based design of next-generation energy-optimized aircraft. When fuel cells fly Emerging hydrogen and fuel-cell-based technologies are being developed for the future replacement of onboard electrical systems in more-electric or all-electric aircraft.
2014-03-21
Magazine
Downsizing: the heat is off Ian Adcock discovers why a material developed in the nuclear industry could prove a real boon for OEMs as they look to downsize engines. Lightweight champions Could an alloy with the strength of steel, but as light as aluminium, prove to be a game changer for the automotive industry? Ian Adcock investigates. Road fatalities: eliminating the human factor In a new series on vehicle safety, Ian Adcock looks at the need for more driver intervention systems.
2016-06-01
Magazine
Digital Design Tools Simulating Thermal Expansion in Composites with Expanded Metal Foil for Lightning Protection Rugged Computing Designing VME Power Systems with Standard Modules Optical Sensors Optical Ice Sensors for UAVs Rotorcraft Technology Rotorcraft Icing Computational Tool Development RF & Microwave Technology Curled RF MEMS Switches for On-Chip Design: Design Software Supports BAE System's Mixed-Signal Chip Design
2016-10-03
Magazine
Achieving Performance Advantages in Unmanned Systems Unmanned Vehicle Systems (UVS) are reaching new levels of functionality and performance, and it's not just for air vehicles either. COTS Embedded Systems and Link Budgets The days of proprietary embedded computing systems in military systems are numbered. Custom Designing Enclosures Using 3-D CAD Modeling Due to the advancement of 3-D computer-aided design software, enclosure manufacturing is not what it used to be. Technology advances industry. Fiber Optic Multi-Sensing Platforms Enabling Innovation Across Aerospace Organizations RECAT Wake Turbulence Recategorization New Concept for Improving the Performance of Electrically Small Antennas Microwave Radiometer for Advanced Nanosatellite Control Systems Secret Sharing Schemes and Advanced Encryption Standard SIPHER: Scalable Implementation of Primitives for Homomorphic Encryption Using Mathematics to Make Computing on Encrypted Data Secure and Practical
2016-08-04
Magazine
Special report: Lightweighting Uncovering the next actions in the industry's grand mass-reduction campaign. CAE's next leap forward With 3D simulations skyrocketing, engineers are looking forward to highly-optimized toolsets to keep pace with complexity. SAE Convergence 2016 Preview Meet the disruptors, network with peers and learn about the latest tech solutions that are rapidly changing the auto industry. "Military-grade" aluminum Jaguar, Exa say simulation to eliminate prototypes by 2020 OEMs expand testing of FEV variable-compression ratio engine Growth of FCVs and EVs tied to infrastructure Bolt EV seat design cuts weight, delights tall passengers Rolls-Royce reveals a Vision of its future Volvo bets on new PowerPulse, not 48V, to attack turbodiesel 'lag' SEAT to spearhead VW's new platform and 48V technology Dr. Jay Baron of CAR discusses vehicle lightweighting and predicts the outcome of the crucial CAFE mid-term review.
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