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WIP Standard
2013-11-18
The purpose of this Report was to provide guidance to the commercial transport aviation industry in the selection and usage of oxygen equipment for high altitude transport aircraft. This Report reflects the consensus of views of the various parts of the industry contacted. The document is based on sound engineering and physiological principles and research data. The recommendations embodied in this document are applicable to commercial transport aircraft for operations between 8,000 and 40,000 ft. altitude.
WIP Standard
2013-11-18
The purpose of this standard is to establish optimum standards for crew demand and pressure-breathing oxygen mask assemblies for use by crew members in civil aircraft. This standard covers both general type and quick-donning type mask assemblies in the following classes: a. Class A, oronasal, demand b. Class B, oronasal, pressure-demand c. Class C, full face, demand d. Class D, full face, pressure-demand
WIP Standard
2013-11-18
The scope of this document is to provide a list of documents of types pertaining to the effects of oxygen on ignition and combustion of materials. Consolidating these references in one place makes it easier to find documents of this type as these references are difficult to locate.
WIP Standard
2013-11-18
This SAE Recommended Practice establishes for left-hand steer on-road trucks, buses, and multipurpose passenger vehicles with GVW of 4500 kg (10 000 lb) or greater: a. Minimum performance requirements for windshield wiping systems. b. Uniform test procedures that include those tests that can be conducted on uniform test equipment by commercially available laboratory facilities. c. Uniform terminology of windshield wiper system characteristics and phenomena consistent with those found in guides for the use of engineering layout studies to evaluate system performance. d. Guides for the design and location of components of the systems for function, servicing of the system, etc. The test procedures and minimum performance requirements, outlined in this document, are based on currently available engineering data. It is the intent that all portions of the document will be periodically reviewed and revised as additional data regarding windshield wiping system performance are developed.
WIP Standard
2013-11-18
This SAE Recommended Practice establishes uniform test procedures and performance requirements for the defrosting system of enclosed cab trucks, buses, and multipurpose vehicles. It is limited to a test that can be conducted on uniform test equipment in commercially available laboratory facilities. Current engineering practice prescribes that for laboratory evaluation of defroster systems, an ice coating of known thickness be applied to the windshield and left- and right-hand side windows to provide more uniform and repeatable test results, even though under actual conditions such a coating would necessarily be scraped off before driving. The test condition, therefore, represents a more severe condition than the actual condition, where the defroster system must merely be capable of maintaining a cleared viewing area. Because of the special nature of the operation of most of these vehicles (where vehicles are generally kept in a garage or warmed up before driving) and since defrosting under steady-state over-the-road operations is the main concern, test conditions have been adopted which assume that the engine is warm before the vehicle is driven.
Standard
2013-11-07
This SAE Standard documents standard nomenclature in common use for various types of radiator and radiator core construction, as well as for various radiator-related accessories.
Article
2013-11-04
With its new line of automotive fabric and leather concepts for customers worldwide, Lear’s seat surface material capabilities now extend to a full range of custom finishing techniques, including laser etching, embroidery, embossing, perforations, and polymer printing.
Article
2013-10-31
New R-1234yf production is promised by Arkema. SAE Cooperative Research Group shows R-445A blend has potential, and vehicle prototype charging equipment for assembly line and service shop is undergoing testing. German automakers resurrect the R-744 (carbon dioxide as a refrigerant) development program.
Article
2013-10-31
The interior supplier showed five concept seats featuring customization via various secondary processes at its fall 2013 fashion show. One such advanced technology, polymer printing, enables Lear designers to create a unique look that is then laminated onto the leather as a 3-µm (118-µin) thick film.
WIP Standard
2013-10-23
The intent of this SAE Aerospace Information Report (AIR) is to describe the effects of the environmental changes on human physiology and the protection required to avoid negative consequences resulting from altitude exposure. A brief presentation of basic terms and considerations required to discuss the topic of human physiology at altitude are followed by an overview of the cardiovascular and respiratory systems. Issues specifically related to human exposure to altitude are then discussed. Hypoxia, hyperventilation, barotrauma, and decompression sickness (DCS) are each addressed: hypoxia is defined as an insufficient supply of oxygen to the tissues, hyperventilation is an excessive rate of ventilation with ultimate consequences on acido-basic equilibrium, barotrauma is injury caused by pressure: most commonly referencing injury to the walls of the Eustachian tube and the ear drum due to the difference between atmospheric and intratympanic pressures, and DCS is related to an excess of nitrogen in the body tissues.
WIP Standard
2013-10-22
The Road/Lane Departure Warning System is a crash-avoidance technology which warns drivers if they are drifting (or have drifted) out of their lane or from the road. This warning system is designed to help prevent the possibility of a run-off-road crash. This system will not take control of the vehicle; it will only let the driver know that he/she needs to steer back into the lane. This warning system is not designed as a lane-change monitor, or a merging system which warns of other vehicles. This informational report applies to OEM and after-market Road/Lane Departure warning systems for light-duty vehicles on relatively straight roads with a radius of curvature of 500m or more, and under good weather conditions. Future revisions should consider the implications of newer variations on the user experience.
Standard
2013-10-20
This document is intended to highlight critical design issues that a panel designer should understand when designing panels for NVIS applications. It is not intended to be a discussion of the benefits of one lighting technology versus another. See ARP4168 for a more complete discussion of these lighting technologies.
Article
2013-10-15
Soform from Asahi Kasei Plastics is a specialty soft-touch polypropylene for automotive interior applications.
Article
2013-10-11
Luxurious interior and electronics content update the SRT while maintaining the "beast" image, and the new 2014 TA (Time Attack) package is a street-legal, track-ready package.
Standard
2013-10-08
This SAE Aerospace Recommended Practice (ARP) lists the lamps in Table 1 that are recommended for the type of service indicated. This list is not intended as a catalog and does not include many types that are now in use. This specification is not applicable to Solid State Lighting Lamp Assemblies (Based LED lamps). It does, however, reflect current practice.
Technical Paper
2013-10-07
Ricardo Silva, Luis Mauro Freitas, Fabio Reis, Mike Munhato, Roger Guilherme, Araí Augusta Bernárdez Pécora
The use of air conditioning systems in passenger cars in Brazil has increased significantly in the last decade. The installation rate increased from 47% in 2006 to about 80% in 2012. Especially for compressors with variable displacement, the measurement of the impact of this equipment on the engine performance and on the fuel consumption represents a challenge to be overcome. It must be considered that the environmental conditions present a great influence on the heat load to be removed from the passenger compartment. This paper describes the development of an experiment at an engine dynamometer bench to simulate the influence of the air conditioning system on the engine parameters. The combustion engine works with the compressor and all the others air conditioning system components assembled. The developed test allows the simulation of a large range of heat load on the evaporator module by controlling the air mass flow rate and air properties (temperature and humidity) at the air distributor inlet.
Technical Paper
2013-10-07
Orlando Volpato Filho
The Brazilian automotive market is growing, vehicle sales ranked in the 4th. global position only behind China, United States and Japan; more than 40% of Brazilian production are entry level vehicles. The use of air conditioning systems in those basic vehicles are increasing due to being also considered as a safety device, besides its original thermal comfort function. Since 2008 a partnership between Inmetro, CONPET and Petrobras established the adoption of an “energy seal” ranking of vehicles in respect to their fuel consumption; the newly introduced tax regime: Inovar-Auto establishes less taxation to more efficient vehicles. This and other environmental concerns are demanding the reduction of CO2 emissions. Due to cost restrictions, the A/C systems installed in those vehicles, in most of the cases, are too simple and inefficient. In order to reduce fuel consumption electronic controlled A/C systems where developed but its cost is higher than the simple systems because their construction are more complex and they use a separated A/C control module along with many sensors and actuators.
Technical Paper
2013-10-07
R.A. Antonelli, L.C.C. Costa, A.M.N. Eustachio, R.C. Queiroz, F. S. Martins, A.P.S. Mello
Safety, Ergonomics and comfort are inseparable concepts and of greater relevance to the full exercise of professional drivers, being the seat, one of the most important components to be considered, when designing their workplace. This work presents initiatives taken by Mercedes-Benz do Brasil Ltda. (MBBras) in partnership with GRAMMER do Brasil Ltda. (Grammer) and Oficio Ergonomia e Design Ltda. concerning the improvement of a SAE Class 8 Heavy-truck Driver Seat. Proposals involved seat design improvement at driver reach and posture, design and constructive characteristics (seat-bottom foam and frame) Upholstery, seat-controls ergonomics and the vibration response, due to the introduction of independent shock-absorbers. A user centered approach was employed to promote the necessary interaction between the major synergic areas: ergonomics, engineering, manufacturing and design, in order to guarantee that the greatest number of demands coming from future customers - here represented by a selected group of drivers - was brought to reality.
Technical Paper
2013-10-07
Erik Telles Pascoal, Gustavo de Souza Lima
A frequent situation in the national automobile industry is the each time bigger rapidity that just-launched models are evolved (the so called face-lifts). Within this highly dynamic context, the solutions and technical proposals developed by the local product engineering have two main guidelines. The first one is to work on product evolutions which goal is to make the vehicles far more attractive and differentiated with respect to the competition and also to the previous model. The second one is to constantly search the standardization or the modularization of parts between the different models and versions of vehicles, thus reducing the costs of investments and providing scale profits. This article aims to present, through a case study of the front seat structures, a practical and innovative example of the application of a modular solution developed by the local product engineering that allowed the conciliation of these two apparently antagonistic objectives, the one of obtaining scale economies and, at the same time, the other of preserving the style and the identity of each one of the final products.
Standard
2013-10-04
This SAE Aerospace Recommended Practice (ARP) covers the requirements for the types of glass to be utilized in the fabrication of cover glasses and lighting wedges used in aerospace instruments. It defines the maximum extent of physical defects and recommends standard methods of inspection and evaluation. Definitions of terminology used in this document are covered in 2.2.
WIP Standard
2013-09-30
The purpose of this document is to establish air conditioning design guidelines that will apply to most systems rather than the specific design of any particular system. Operating conditions and characteristics of the equipment will determine the design of any successful system, and since these characteristics and conditions vary greatly from one application to another, the designer must determine the goals expected to be reached under the conditions encountered. To determine the capacity of such items as blowers, condenser fans, condenser coils, evaporator coils, filters, compressors, etc., will require the adherence to several guidelines, some of which are outlined in this document.
WIP Standard
2013-09-30
in this AIR should be considered, as opposed to long-life operation and environmental requirements of a manned aircraft, engine-driven pump. Appendix A is intended to indicate typical environments for several different types of missiles. The actual requirements for a given system should be used and specified in the detailed specification.Missile pumps are categorized by a moderate testing life and a relatively short operational service life. Generally, the pumps are operated at higher speeds, temperatures, and pressures than those used in manned aircraft systems, yet reliability must be extremely high, since there rarely is a redundant system aboard the missile. Due to the short but critical life and performance requirements, development, reliability and acceptance testing should be focussed on eliminating infant mortality failures. Missile pumps must be compatible with very severe environmental conditions during the service life. In general, the temperature, vibration, shock, and acceleration encountered are more severe than those met in manned aircraft.
Article
2013-09-25
Chemical reaction-based "thermal batteries" could provide HVAC services to lighten the load on electrochemical batteries.
Article
2013-09-24
Body styling, color, and engine power may have to start sharing their role as key differentiators with yet another vehicle attribute—the human-machine interface (HMI). A growing number of companies are focusing on HMIs amidst predictions that more car buyers will make decisions based on these electronic controls.
WIP Standard
2013-09-24
This SAE Aerospace Recommended Practice (ARP) applies to Point-Of-Use, Central and Mobile Pre-Conditioned Air Equipment. It does not apply to aircraft mounted equipment.
Technical Paper
2013-09-24
Prithiv John, B Sriram, Senthil Kumar R, S Vinoth Kumar, Prakash Ramasamy, C Vijay Ram
Ventilation is a crucial factor affecting passenger comfort in any vehicle. In a non-air-conditioned bus, ventilation caters to the dual requirement of fresh breathing air as well as providing a cooling sensation by enhanced evaporation of sweat. The higher the velocity of air around the passengers, the greater the cooling effect experienced by them. The ventilation mechanism of a non-air-conditioned bus is primarily the air flow through the windows due to relative motion between the bus and the air around it. This paper describes studies carried out to identify the right combination of open windows which would provide optimum air flow at the passenger head level plane in a bus. A bus model with 12 windows, 6 on each side is used for the study and air velocity at certain points in the head level plane, arising out of different combination of window openings is evaluated using CFD. The minimum value of velocity observed among the points, which is indicative of the minimum level of comfort provided by the combination, is compared for different combinations of openings and the optimum identified.
Article
2013-09-19
Autoliv’s adaptable seatbelt features improved safety for all occupants, especially children.
Standard
2013-09-19
This Aerospace Recommended Practice provides design and installation criteria intended to enhance overall safety by mitigating exposure of cabin crew and passengers to risks from: a. Routine use of galley systems. b. Galley components or equipment becoming dislodged under routine or abnormal operating conditions and under survivable crash or ditching conditions. c. Malfunctions of, or defects in, a galley system or associated galley equipment. NOTE: It is not the purpose of this Aerospace Recommended Practice to specify the specific designs or design methods to be followed in the accomplishment of stated objectives.
Magazine
2013-09-17
Seating solutions steer toward steel Zoomy-looking designs and alternative materials are eye-catching and save weight, but steel keeps getting lighter.
Technical Paper
2013-09-17
Robert C. Grant
The aging of the world population, and call for greater equality in access to public environments has led to an increase in design for persons with reduced mobility (PRM). There are numerous physical and operational constraints and parameters to overcome when designing a successful and marketable PRM environment. Each program evaluates what is to be considered reasonable based on these guidelines (cost, weight, manufacturability, airframe curvature, footprint required, regulations, and usability). However, there are other less tangible parameters to address. For example, what level of dignity or level of privacy does the PRM environment allow? Does the design require additional assistance to access, or can those who are able make independent use of the environment? Most aircraft manufacturers and design entities have recognized the need to improve accessibility aboard single aisle commercial aircraft (Airbus 320 family, Boeing 737, Embraer 190, Bombardier CSERIES). Current efforts are a step in the right direction, but significant effort and continued improvement is required to accommodate the mobility impaired segment of our travelling public.
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