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Standard

Automotive Gasolines

1986-05-01
HISTORICAL
J312_198605
This SAE Recommended Practice summarizes the composition of modern automotive gasolines, the significance of their physical and chemical characteristics, and the pertinent test methods for defining or evaluating these properties.
Standard

Lift Capacity Calculation and Test Procedure-Pipelayer and Sideboom

1986-05-01
HISTORICAL
J743_198605
This SAE Standard describes a method to calculate and a test procedure to validate rated lift capacity as presented in commercial literature for pipelayers and tractors or loaders (wheel or crawler), equipped with a hydraulic or mechanically operated sideboom. Rated lift capacity considers hoist mechanism limits, tipping loads, and rope factor. After the lift capacity is validated by testing, a reduction factor is applied to establish the rated lift capacity for the specific pipelayer or sideboom configuration.
Standard

Automotive Transmission Terminology

1986-05-01
HISTORICAL
J645_198605
The following listed definitions are intended to establish terminology and criteria for describing the various kinds of automotive transmissions. A specific arrangement may be described by a combination of several of these definitions.
Standard

Optional Test Procedures for Hydraulic Hose Assemblies

1986-05-01
HISTORICAL
J1405_198605
The procedures contained in this SAE Recommended Practice have been developed to establish uniform methods for impulse and high temperature circulation testing of hydraulic hose assemblies under special conditions not specified in SAE J343 for SAE J517 hoses. Basic test procedures are to be in accordance with SAE J343 except as modified in this document.
Standard

Test and Test Procedures for SAE 100R Series Hydraulic Hose and Hose Assemblies

1986-05-01
HISTORICAL
J343_198605
This SAE Standard gives methods for testing and evaluating performance of the SAE 100R series of hydraulic hose and hose assemblies (hose and attached end fittings) used in hydraulic fluid power systems. Specific tests and performance criteria for evaluating hose assemblies used in hydraulic service are in accordance with the requirements for hose in the respective specifications of SAE J517. This document further establishes a uniform means of testing and evaluating performance of hydraulic hose assemblies.
Standard

Chemical Compositions of SAE Wrought Stainless Steels

1986-05-01
HISTORICAL
J405_198605
The chemical composition of standard types of wrought stainless steels are listed in ASTM Specification A240. The UNS 20000 series designates nickel-chromium manganese, corrosion resistant types that are nonhardenable by thermal treatment. The UNS 30000 series are nickel-chromium, corrosion resistant steels, nonhardenable by thermal treatment. The UNS 40000 however, includes both a hardenable, martensitic chromium steel and nonhardenable, ferritic, chromium steel. Reference to SAE J412 is suggested for general information and usage of these types of materials. See Table 1.
Standard

Recommended Practices for Hydraulic Hose Assemblies

1986-05-01
HISTORICAL
J1273_198605
SAE J1273 provides guidelines for selection, routing, fabrication, installation, replacement, maintenance, and storage of hose and hose assemblies for fluid-power systems. Many of these SAE Recommended Practices also may be suitable for other hoses and systems.
Standard

Capacity Rating--Dozer Blades

1986-05-01
HISTORICAL
J1265_198605
This standard applies only to straight, angling, semi-U, and U-blades for crawler and wheel tractors. It applies to angling blades only in the straight (not angled) position. This standard does not apply to angled blades or other tools used to side cast materials, nor does it apply to any blade with design features such as end plates extended beyond the blade face. This standard assumes the blade face to be flat and vertical, and does not consider the blade included volume (Figure 1). Although provisions are presented for some deviations, this standard is intended for rectangular blades whose width/height ratios are at least 1.0. Purpose The purpose of this standard is to provide a uniform method for calculating the capacities of dozer blades. It is intended for relative comparisons of dozer blade capacity, and not for predicting capacities or productivities in actual field conditions.
Technical Paper

The Development of a Standard Electronic Module with MIL-STD-1750A Capabilities

1986-04-24
860838
This paper describes the development of a standard size and function electronic module to meet the requirements of aircraft technology advances and future military aircraft avionic systems. The standard electronic module developed utilizes a MIL-STD-1750A central processing unit and is designed for applications requiring a general data processor. Design goals included MIL-STD-1750A compatibility, non-volatile, high speed memory, memory management options, interfacing to a common bus backplane, the use of surface mount technology, application of new material and process techniques, and high speed I/O and direct memory access. Second generation development of this electronic module will incorporate VHSIC technology.
Technical Paper

B-1B Avionics System Safety Overview and Approach

1986-04-24
860854
This paper presents an overview of the B-1B avionics safety analysis. Nuclear safety and terrain following flight safety were major concerns. Analyses demonstrate that all safety requirements were met. Extensive coordination with the B-1B System Program Office and the support of major Boeing B-1B avionics subcontractors was required. The paper summarizes nuclear safety effort. It presents significant details of the terrain following analyses to give insight into the technical and integration challenges. Lessons learned are included.
Technical Paper

High Speed Bus for Pave Pillar Applications

1986-04-24
860857
A new high speed data bus is urgently needed in military aircraft to offset the dramatic increase in dedicated wiring harnesses and to accommodate the need for greater information flow, resource sharing and fault tolerance. To satisfy that need the Air Force has awarded a High Speed Bus Technology Development contract to develop and validate complete high speed digital bus network designs including terminals, bus couplers, and media operating at 50 Megabits per second. A special feature of this linear token passing bus is that the basic terminal is compatible with both fiber optic and wire media. This paper describes methods for collecting user requirements, establishing acceptable criteria, and developing a simulation tool that will play those requirements against protocol alternatives to achieve the desired results.
Technical Paper

Fluoropolymer Foam for Twisted Pair Cables

1986-04-24
860858
A material consisting of gas and polymer in a closed cell structure is called a foam. An insulation material that is foamed will have a lower dielectric constant and dissipation factor than the solid material. A polymer with a low dielectric constant, when foamed, will yield cable designs that are smaller and lighter than electrically equivalent designs using solid insulation materials. This paper describes the basic properties of such a polymer. Data is presented on the mechanical properties of wires insulated with this foamed material. Theoretical electrical properties and calculated polymer weights for MIL-STD-1553B data bus constructions are also presented. THE COMMERCIAL COMPUTER and telecommunications industries are driven by the demand for more information and faster communications. The cable designer has the task of providing voice and data communications at higher speeds, over longer distances, and with less signal distortion or loss.
Technical Paper

Low Cost Test Instrumentation for 1553 Based Systems

1986-04-24
860859
In addition to supporting the full repertoire of bus controller functions required for the protocol portion of the R.T. Production Test Plan, the latest generation of low cost 1553 protocol testers provides versatile capabilities for remote terminal simulation and real-time monitoring. When used in conjunction with a very low cost “Noise” (Word Error Rate) tester, such a protocol tester is capable of performing the “Bus Switching” test for dual redundancy. This class of noise tester provides all the necessary hardware and firmware required to perform the Word Error Rate Test of the R.T. Validation (SEAFAC) test, including the noise source. Both instruments are fully controllable by means of the IEEE-488 (GPIB) interface, including DMA capability for the protocol tester.
Technical Paper

A Robust 100-Mb/s Fiber-Optic Local Area Network for Aerospace Applications

1986-04-24
860846
Two years of effort have gone into the development of a high-speed, fiber-optic local area network suitable for aerospace applications. In tailoring this system (Star*Bus) to aerospace applications, particular attention has been paid to system redundancy, size, power, and weight. The result is a 100 Hb/s, autonomously redundant network which incorporates a dual star topology and a robust protocol The network achieves robustness through the use of a dual-mode protocol that incorporates the advantages of both contention (Ethernet) and deterministic (token-passing) types of protocol. In this manner, it achieves the short network delays under light network loading possible with a contention protocol, while retaining the efficiency and deterministic characteristics of a token-passing protocol at high network loads. The initial network performance has been evaluated using an eight-node system and redundant 20×20 optical couplers. Network delays correlated well with predicted values.
Technical Paper

Utilities Systems Management-Flying Demonstrator

1986-04-24
860851
Utilities systems are classed as those which relate to the control of basic aircraft systems such as fuel, engine related, environmental control, secondary power hydraulics and other miscellaneous activities. Historically, control of these systems has been organised on an Individual basis with separate control and display facilities being provided for each system. Experience has proved, however, that this is neither the most effective nor the most efficient way of organising these functions. Furthermore, the advent and maturity of modern micro-electronics, together with the development of digital data buses and multi-function displays, calls for a more integrated approach.
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