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Viewing 1 to 30 of 4338
2018-01-17
Article
Achates' opposed-piston, multifuel engine program enters the vehicle-demonstration, real-world-test phase, with new development partner Aramco.
2018-01-15
Article
Truck and off-highway manufacturers can benefit from in-process testing (IPT) to compete on a 4.0 footing, according to Sciemetric. IPT and today’s data management and analysis tools offer a relatively easy starting point to boost the intelligence of manufacturing plants.
CURRENT
2018-01-10
Standard
J864_201801
Hardness testing with files consists essentially of cutting or abrading the surface of metal parts, and approximating the hardness by the feel, or extent to which, the file bites into the surface. The term 'file hard' means that the surface hardness of the parts tested is such that a new file of proven hardness will not cut the surface of the material being tested.
2018-01-09
Article
The L.S. Starrett Company’s line of entry-level computer-based force-testing solutions are for applications ranging from load limit and distance testing to break limit, time average, cyclic count and duration testing, constant hold and more.
CURRENT
2018-01-02
Standard
AMS2466C
This specification covers the requirements for a hard anodic coating on magnesium alloys.
CURRENT
2018-01-02
Standard
AMS2487B
This specification describes the engineering requirements for producing an electrically-insulating, non-powdery anodic coating on titanium and titanium alloys and the properties of such coatings.
CURRENT
2018-01-02
Standard
AMS2810H
This specification provides requirements for the identification and packaging of sheet, strip, extrusions, and molded parts made of natural rubber, synthetic rubber, reclaimed rubber, and combinations of the above with other materials such as asbestos, cork, and fabrics. AMS2817 covers preferred requirements for identification and packaging of preformed packings.
2017-12-20
Article
Large, traditional satellites require complex systems and often a dedicated launch vehicle to place them in orbit. The immense costs associated with these endeavors have led to growing demand for cost effective “nanosatellites.” A multitude of various companies are innovating and adapting to meet that demand, including Monroeville, NC-based CRP USA.
CURRENT
2017-12-20
Standard
J349_201712
This SAE Information Report provides a summary of several methods that are available for detecting, and in some instances detecting and measuring, surface imperfections in rods, bars, tubes, and wires. References relating to detailed technical information and to specific applications are enumerated in 2.2.
2017-12-15
WIP Standard
AMS2415K
This specification covers the requirements for electrodeposited and diffused lead and indium plate.
CURRENT
2017-12-10
Standard
AS9104B
These requirements are applicable to IAQG sector schemes when making use of ABs, CRBs and their auditors, for the assessment and certification/registration of supplier quality systems in accordance with the requirements of this document. The quality management system standard used by the CRB shall be 9100/9110/9120, as appropriate to the supplier's activities. It shall be applied to the supplier's complete Quality System that covers aerospace products. Sectors may use these requirements for other standards. IAQG members have committed to recognize the equivalence of certification/registration of a suppliers quality management system to either of the AS, EN or JISQ/SJAC standards.
2017-11-23
Magazine
High-Reliability Capacitors When the Mission Just Can't Fail WIAMan High-Tech Test Lab Focuses on Saving Soldiers' Lives Improving the Surface Finish of Additive Manufactured Parts A new chemical immersion treatment could revolutionise the aerospace industry Using Thermoplastic Composites for Aerospace Applications Identifying and Isolating Signals Using Radio Frequency Photonics Bioinspired Surface Treatments for Improved Decontamination: Commercial Products Investigation seeks to determine which coatings shed fluids most effectively. Mechanical Characterization and Finite Element Implementation of the Soft Materials Used in a Novel Anthropometric Test Device for Simulating Underbody Blast Loading Understanding the mechanical behavior of components made from eight soft polymer materials is necessary to ensure the predictive capability of WIAMan FE models.
CURRENT
2017-11-21
Standard
AMS2431/1F
This specification, in conjunction with the general requirements for peening media covered in AMS2431, establishes the requirements for the procurement of conditioned cast steel shot with a hardness of 45 to 52 HRC.
2017-11-20
WIP Standard
J3014
This SAE Recommended Practice provides test procedures, requirements, and equipment recommendations for the methods of the measurement that characterizes potential design failures by utilizing a step stress approach to subject a device under test to thermal, vibration, and electrical stresses of types and levels beyond what it may see in actual use, but which will rapidly induce failure modes, allowing them to be detected and corrected.
2017-11-18
Article
The Boston-based start-up successfully completed test flights of the SX-1.2—a subscale, subsonic, unmanned demonstrator for its S-512 Quest Supersonic Jet. Competition from Aerion, HyperMach, and Boom points to supersonic commercial flight arriving earlier than thought.
2017-11-09
Article
Fiber orientation in composites makes material properties assessments disproportionately more complex than for other materials, such as metals and plastics. To conduct demanding quality-control fatigue tests on glass-fiber composite aerospace specimens, Zwick Roell developed an electro-dynamic, liner-drive testing machine.
CURRENT
2017-11-09
Standard
ARP9107A
Limited to the commercial aerospace industry where a request is made for a PO to have Direct Delivery Authorization (DDA), which includes an Appropriate Arrangement (AA) between the PO and the Design Organization (DO). In this process the DO is responsible for ensuring the continuous updating of design and airworthiness data to the PO, whilst the PO is responsible for assurance that the manufactured article conforms to approved design and airworthiness data. The PO is responsible to provide airworthiness release documentation.
2017-11-07
Technical Paper
2017-36-0082
R.B. Obara, L.C. Guedes
Abstract Internet has transformed all industries and the automotive sector is on its list. It is true that manufacturing has experienced great advances in recent years, but the massive use of internet in industry is about to revolutionize it once again. The Internet of Things (IoT), the Big Data Analytics and the use of RFID technology will revolutionize manufacturing, giving to the so called “smart factories” the ability for self-diagnosis, self-configuration and self-optimization. That is what we call Industry 4.0, or the fourth industrial revolution. However, how will Industry 4.0 affect automakers and end users of vehicles? What are the challenges to bring Industry 4.0 innovations to the manufacturing industry? The present work discusses future trends in engine manufacturing, focusing on the quality control of its main components. Also, a fully automated inspection technique for quality control of cylinder bores from internal combustion engines is presented.
2017-11-07
Technical Paper
2017-36-0074
Luis Alberto Pargas Carmona
Abstract Regression analysis is perhaps one of the most widely used statistical tools in six-sigma projects. The reason for its popularity is that it provides a formal evaluation of the relationship between one dependent variable and one or more predictors. The ordinary least squares (OLS), which is a method for estimating the parameters of the linear regression model, has some numerical properties that can be easily understood by looking at them in a geometric manner. In this paper, we discuss the fundamentals of both simple and multiple regression analysis from a geometric perspective. This approach offers an intuitive understanding of some concepts that otherwise would require a background in statistical mathematics and differential calculus. One of the topics covered in this paper is multicollinearity, whose consequences are not well understood by many practitioners.
2017-11-07
Technical Paper
2017-36-0330
I. A. Coutinho, J. Landre
Abstract Vehicle components are frequently submitted to several vibratory conditions along their applications. At commercial vehicles industry, dynamic excited components are exposed to durability failures, which more than financial repairing costs, can potentially prevent value growth, since goods such as fuel, food, commodities, medicine, won’t reach their destinations and hold a whole economy chain. Vibratory bench tests is a common resourced used by development companies (OEMs) to assess if component is properly design to fulfill vehicle operational conditions.
2017-11-07
Technical Paper
2017-36-0217
Roberta de Cássia Ferreira Porto, Marcelo Lopes de Oliveira e Souza
Abstract Systems such as satellites, airplanes, cars and air traffic controls are becoming more complex and/or highly integrated. These systems integrate several technologies inside themselves, and must be able to work in very demanding environments, sometimes with few or none maintenance services due to their severe conditions of work. To survive such severe work conditions, the systems must present high levels of reliability, which are achieved through different approaches, processes, etc. These unfold in many: levels of aggregation (systems, subsystems, equipments, components, etc.), phases of their lifecycles (conception, design, manufacturing, assembly, integration, tests, operation, etc.), environments (land, sea, air, space, etc.), types of components/applications/experiences/technological communities (nuclear, aerospace, military, automotive, medical, commercial, etc.), leaded by the widespread use of semiconductors.
2017-11-07
Technical Paper
2017-36-0114
Henrique Martelli, Daniel Vilela
Abstract This study aims to develop a virtual structural durability procedure for the formula SAE chassis and apply it on 2015 Maua Racing vehicle in order to identify potential durability concern areas and mass reduction areas. Quasi-static load cases were developed, based upon acceleration experimental data and analytical load transfer function, to represent the vehicle dynamic behavior at several work conditions. Virtual simulations (multibody and finite elements) indicate that 2015 chassis meets the targeted durability criteria for both peak loading and fatigue damage. Borderline regions were verified considering peak loading target and a special attention should be paid to them during reduction mass studies avoiding the target violation. Other regions present structural stress considerably lower than material capability, what indicates significant mass reduction potential.
2017-11-05
Technical Paper
2017-32-0034
Shunsuke Ishimitsu, Takuma Sagawa, Tomoaki Ito, Naoaki Shibatani, Toshihisa Takagi, Kazuki Yoshida, Kenta Suzuki, Takanori Chino
Recent years, ANC (Active Noise Control) technology has been paying attention. However, rather than the noise measures, the noise gives us the impression even running sound for motorcycles. That is, the control method of the engine sound is shifted from the noise reduction to sound design in each manufactures. Therefore, we proposed a method to design the engine sound using Active Sound Quality Control (ASQC) based on the ANC. Specifically, we proposed the algorithm amplifying and reducing the engine specific order components. From the simulation results, the engine specific order components can be amplified and reduced like an equalizer with the proposed algorithm. And, auditory impressions of engine sound controlled by ASQC were investigated using psychoacoustic measurements. 13 stimuli were obtained by applying ASQC for several order components to amplify or reduce their levels.
2017-11-05
Technical Paper
2017-32-0099
Kazunobu Sakamoto
The purpose of this study is to improve the accuracy of durability predictions for motorcycle body components through the implementation of a fatigue analysis that uses the finite element method (FEM) to identify the fatigue failure characteristics of arc welds, die-cast aluminum alloys, and thermo-plastics. In addition to highly accurate load conditions and stress analysis, a fatigue analysis that also takes into consideration the fatigue failure mechanism is essential to making accurate durability predictions. Fatigue tests were carried out under several load conditions using specimens of several different shapes that simplified the actual structures. The fatigue life of the weld toe is assumed to be the difference of the crack propagation rate due to the loading mode. The durability of die-cast aluminum alloys was found to be sensitive to the microscopic structure due to the casting process.
CURRENT
2017-11-03
Standard
AMS2420E
This specification covers the requirements for preparation of aluminum and aluminum alloys for soldering by zinc immersion pre-treatment followed by copper plating and tin or tin-zinc alloy plating.
CURRENT
2017-11-03
Standard
AMS2222K
This specification covers established inch/pound manufacturing tolerances applicable to copper and copper alloy sheet, strip, and plate ordered to inch/pound dimensions. These tolerances apply to all conditions, unless otherwise noted.
2017-10-31
White Paper
WP-0003
Actuators are the key to sophisticated machines that can perform complex tasks previously done by humans.
2017-10-30
Article
COMSOL’s Multiphysics 5.3a adds several features, improves speed, has fewer bugs
2017-10-15
Article
Engineers at NASA and Boeing are amongst the believers who foresee folding wings in-flight using advanced materials and technologies being a potential game-changer for future aircraft. The two organization have teamed to develop an actuation system that uses an SMA that will accomplish this goal using less complex, lighter, and more compact hardware than conventional systems.
2017-10-12
Article
Emission Analytics' EQUA database provides online users with vehicle-to-vehicle comparisons of greenhouse gas emissions and real-world fuel economy.
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