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2016-11-08
Technical Paper
2016-32-0020
TL Balasubramanian
Development of small air cooled motorcycles is ever challenging due to combination of customer expectation, regulatory requirements and cost factors. Achieving higher performance and emission standards means higher engine and parts operating temperature. Under these changes meeting durability targets at reasonable cost needs good understanding of material, surface treatment and tribological aspects. In this paper some of the surface and process improvements done to reduce wear in engine valves is discussed in detail. Design of engine valves shall ensure meeting thermal, mechanical strength requirements wear and durability targets. Surface treatments, coating, surface finish and also use of special materials in tip, valve stem, seat ensures higher durability; low wear in valve and interfacing parts. During new engine development process verification tests, wear observed in valve stem- valve guide, valve tip- screw interface.
2016-10-01
Book
Lev Klyatis
The ability to successfully predict industrial product performance during service life provides benefits for producers and users. This book addresses methods to improve product quality, reliability, and durability during the product life cycle, along with methods to avoid costs that can negatively impact profitability plans. The methods presented can be applied to reducing risk in the research and design processes and integration with manufacturing methods to successfully predict product performance. This approach incorporates components that are based on simulations in the laboratory. The results are combined with in-field testing to determine degradation parameters. These approaches result in improvements to product quality, performance, safety, profitability, and customer satisfaction.
2016-09-18
Technical Paper
2016-01-1928
ByeongUk Jeong, Sang Do Kwak, Cheol Ki Kim
Owing to the enhanced requirement of brake free noise these days, more damping kits should be installed in the braking system. Success of doing this properly causes softness in the brake system which results in the loosened stroke feeling of brake pedal, the increased compressibility by durability. A study for detailed factors to aggravate brake feeling was done as a solution to prevent these from happening. In this paper, we present our work based on experiments to measure compressibility of shims by the influence of variations in different parameters, for example, of adhesive shims (bonding spec., steel and rubber thickness), piston’s shapes (different contact areas to the shims), and the numbers of durability. We installed the brake feeling measurement system extended from brake pedal to caliper. Experimental parameters were compared with brake feelings in vehicle using it. The optimization for brake feeling was determined by design for six sigma (DFSS).
2016-09-02
Journal Article
2016-01-9111
Sebastian Brandes, Klaus-Dieter Hilf, Riccardo Möller, Tobias Melz
Abstract This paper makes a contribution toward a more efficient chassis durability process for the development of passenger cars, in which the simulation of relevant load data is a time-consuming part. This is especially due to the full vehicle model complexity which is usually determined by the demands of rough road simulations. However, for the load calculation on a racetrack, time saving model approaches that are more simplified might be sufficient. Our investigation comprises two levels of vehicle model complexity: one with all chassis parts modeled in a multibody system environment and one characteristic curve based model in an internal simulation environment. Both approaches consider an original chassis control system as a Software-in-the-Loop model. By the evaluation of real-world experiments the main influence factors in terms of durability are demonstrated. With the help of those highly sensitive durability criteria the measurement and simulation results are then compared.
2016-08-26
Article
dSPACE and BTC Embedded Systems offer a solution that improves test depth for the real-time validation of safety-critical applications with extension of classical test methods, easier compliance with safety standards and optimal integration and cross-platform use.
2016-08-26
Article
The push toward miniaturization in the electronics industry has left designers little or no room for test points, and the expansion of high frequency technologies has resulted in a growing need for test equipment that has the capability to verify these types of very small circuits.
2016-08-26
Article
CNH Industrial and AVL researchers used simulation, test bench, and road testing of a demonstrator vehicle with a WHR system to show significantly reduced fuel consumption.
2016-08-15
Article
The MicReD Power Tester 600A from Mentor Graphics Corp. tests electric and hybrid vehicle (EV/HEV) power electronics reliability during power cycling.
2016-08-14
Article
Using simulators for RDE testing is a new aspect for the technology, experts say.
2016-08-12
Article
Anritsu Co. (Richardson, TX) introduces Cellular Module Test Application (CMTA) software for its Signaling Testers MD8475A/B, which provides test cases to simplify testing chipsets and automotive-related telematics modules used in connected car designs and implementation.
2016-08-12
Standard
AS9015A
This SAE Aerospace Standard (AS) further defines the requirements for a delegation process identified in Aerospace Quality Management System (AQMS) standards (i.e., AS9100, AS9110, AS9120). This standard establishes minimum requirements for the delegation of product verification to an organization's suppliers; outlining requirements for the initial delegation (qualification/selection), maintenance, and removal/withdrawal of delegations.
2016-08-08
Article
The dangers of faulty car airbags recently have become all too clear. The product-liability issues associated with airbags and the largest, most costly automotive recall in history make it essential to characterize them thermally at high speeds and with high levels of sensitivity and accuracy.
2016-08-03
WIP Standard
AMS2449A
This specification covers engineering requirements for the grinding of tungsten carbide High Velocity Oxygen/Fuel (HVOF) thermal spray coatings applied to high strength steels (220 ksi and above). This process has been used typically to grind tungsten carbide HVOF coatings applied in accordance with AMS 2447 or AMS 2448 to high strength steels for applications requiring wear, heat, and corrosion resistance or dimensional restoration, such as aircraft landing gear components, However, usage is not limited to such applications. This process specification does not cover superfinishing of HVOF applied coatings.
2016-08-01
Magazine
Seeing the Light Achieving Full-Color, Day or Night Readability for Flat-Panel Displays Multiple Node Networking Using PCIe Interconnects PCI Express (PCIe) interconnects, and how they can be used to support multiple node low latency data transfers over copper or optical cables, is gaining momentum in embedded computing solutions. Zero-Emissions Electric Aircraft Theory vs Reality Analyzing Radar Signals With Demodulation Combining Software and Hardware for Highly Specialized Multichannel Spectrum Monitoring Advanced Thermal Management Solutions Thermoelectric Cooling Thermal Ground Planes Thermal Management of Laser Diodes The Effect of Substrate Emissivity on the Spectral Emission of a Hot-Gas Overlayer Process Approach to Determining Quality Inspection Deployment Experimental Setup to Assess Blast and Penetration-Induced Secondary Debris in a Military Operations in Urban Terrain (MOUT) Environment Non-Contact Circuit for Real-Time Electric and Magnetic Field Measurements
2016-07-31
Article
Delphi Automotive on August 1 announced an extensive autonomous-vehicle pilot program in Singapore, aimed at demonstrating cloud-based fully automated mobility on demand (AMoD) capability “at the [SAE] Level 4 performance level” by late 2019.
2016-07-31
Article
Made of steel and aluminum, NASA's Airvolt test stand was designed and fabricated to help researchers anticipate system integration challenges and verify and validate electric propulsion components.
2016-07-15
Article
Validation testing of the new 2-step VCR by several OEMs has been successful to date and is expanding, as the industry examines more sophisticated solutions to meet CO2 regulations.
2016-07-15
Article
Mississippi State University's Car of the Future, a hybridized Subaru BRZ with advanced software and 3D-priinted innovations, gets an estimated triple-digit mpg while improving acceleration.
2016-07-05
Article
Pickering Interfaces expands its range of PXI 50Ω 600MHz radio frequency (RF) multiplexers with 18 different configurations including a PXI two slot 32:1 configuration.
2016-06-27
Standard
ARP9005A
General: This document contains recommended practices for the effective control of non-deliverable software. It addresses practices for control during the development, production, release maintenance, and retirement of non-deliverable software, as well as for software procured from outside manufacturers and incorporated in the production, evaluation, test, acceptance or calibration of processes. For the purposes of this document, the terms software and non-deliverable software are considered synonymous. Application: The guidelines in this ARP apply to non-deliverable software that: - directly relates to design, manufacture, inspection, test or calibration of a deliverable product, and - directly affects the configuration, conformity or quality of a deliverable product.
2016-06-20
Standard
AMS2370L
This specification covers quality assurance sampling and testing procedures used to determine conformance to applicable material specification requirements of wrought carbon and low-alloy steel products and of forging stock.
2016-06-17
Standard
EIA765A
This index is presented to provide a quick reference of international and national quality standards and publications that support general quality system elements. This reference is a list of quality standards a company may with to consider when implementing or improving their quality system.
2016-06-17
Standard
EIA599A
This Standard is applicable to suppliers of electronic components, assemblies, equipment and related materials. This standard establishes the general requirements to achieve a certified process. The use of this standard is intended for any manufacturing or service company whose goal is to achieve customer satisfaction through continuous improvement.
2016-06-17
Standard
RB4A
A guide for the use by companies contracting for design of electronic products with the Department of Defense (DOD) and other government agencies. This Bulletin present concepts and techniques for quantifying electronic equipment reliability. The techniques are responsive to the requirements of various branches of the Department of Defense and are also useful with regard to other Government agencies (e.g., NASA).
2016-06-16
Standard
EIAQAB7
This document has been formulated as a suggested guide in assisting EIA Engineering Department Panels and JEDEC Councils in cooperating with the Defense Department and other Federal agencies in the preparation of suggested reliability requirements for various types of electronic products as part of a program designed to enhance the reliability of defense and related equipment. The document is to be followed merely as a guide and is not intended to limit technical groups in the consideration of the factors to be taken into account in the development of reliability specifications for recommendation to the Government.
2016-06-15
Journal Article
2016-01-1852
Ehsan Fatourehchi, Vishak Elisaus, Mahdi Mohammadpour, Stephanos Theodossiades, Homer Rahnejat
Abstract Efficiency and durability are key areas of research and development in modern racing drivetrains. Stringent regulations necessitate the need for components capable of operating under highly loaded conditions whilst being efficient and reliable. Downsizing, increasing the power-to-weight ratio and modification of gear teeth geometry to reduce friction are some of the actions undertaken to achieve these objectives. These approaches can however result in reduced structural integrity and component durability. Achieving a balance between system reliability and optimal efficiency requires detailed integrated multidisciplinary analyses, with the consideration of system dynamics, contact mechanics/tribology and stress analysis/structural integrity. This paper presents an analytical model to predict quasi-static contact power losses in lubricated spur gear sets operating under the Elastohydrodynamic regime of lubrication.
2016-05-31
Article
Stanford engineering professor David Lentink plans to use a new wind tunnel to learn the magic of bird flight and apply it to building better aerial robots.
2016-05-31
Standard
EIA738
This document proivdes the guidelines for the utilization of Cpk as a monitor of process performance. This document: -defines the process capability index (Cpk), -outlines some general methods for estimating Cpk, -describes acceptable methods of reporting Cpk, -discusses the advantages, disadvantages, and requirements for some potential applications of Cpk, -addresses the use of similar methods of assessing quality improvement, and -provides some perspective on the value of Cpk and similar techniques. Application of the guidelines in this document should allow businesses to use Cpk or similar techniques to effectively monitor one aspect of quality improvement and to promote strong customer/supplier relationships.
2016-05-31
Standard
CRB2
This paper originated with a software quality panel workshop at the EIA Computer Resources Workshop. The panel group initially focused on requirements for nondeliverable software. It was felt that the requirements for deliverable software were well covered by Department of Defense standards but non-deliverable software issues were not adequately covered. After much discussion, including attempts to define nondeliverable by examples of software types, a surprising unanimous conclusion was reached by the participants. That is: the states of "deliverable" and "non-deliverable" had no bearing on the quality of the software, and thereby also had no bearing on the quality assurance requirements that should be applied for that software. Rather, the only rational application of quality assurance was primarily dependent on the impact that the software had, or could have, on the end product (¡.e. the ultimate mission).
2016-05-31
Standard
EIA554_2
This standard is intended to provide a uniform method of determining proportion nonconforming in finished components and to provide a standardized definition of the quality index referred to as PPM. The method used here is primarily directed at components whose production or procured volume is large enough, during some predefined sampling period, to give statistically meaningful information.
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