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Standard Pitch Vehicle dynamics

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Standard

Screw Threads - MJ Profile, Metric
2024-04-01
CURRENT
MA1370A
This standard specifies the characteristics of the MJ profile metric series of screw threads, altered from ISO 68 M Profile, to include a mandatory controlled radius of 0.18042P to 0.15011P at the root of the external thread and with the minor diameter of both external and internal threads increased to provide a basic thread height of 0.5625H in order to accommodate the external thread maximum root radius.
Standard

Low-Speed Continuous Slip SAE No. 2 μPVT Procedure
2023-11-15
CURRENT
J2964_202311
This SAE Recommended Practice is intended as the definition of a standard test, which may be subject to frequent change to keep pace with experience and technical advances. This should be kept in mind when considering its use. The SAE No. 2 friction test is used to evaluate the friction characteristics of automatic transmission plate clutches with automotive transmission fluid combinations. The specific purpose of this document is to define a µPVT test for the evaluation of the variation of wet friction system low speed slip characteristics as a function of speed, temperature, and pressure. This procedure is intended as a suggested method for both suppliers and end users. The only variables selected by the supplier or user of the friction system are: Friction material Fluid Reaction plates Oil flow (optional) These four variables must be clearly identified when reporting the results of this test.
Standard

Test Cell Thrust Measurement
2023-10-20
CURRENT
AIR4951A
Thrust measurement systems come in many sizes and shapes, with varying degrees of complexity, accuracy and cost . For the purposes of this information report, the discussions of thrust measurement will be limited to axial thrust in single-axis test systems.
Standard

Horizontal Balancing Systems - Isolating Repeatability Issues in Challenging Applications
2023-06-05
CURRENT
ARP6911
This SAE Aerospace Recommended Practice will serve as a practical resource that offers guidance to both the machine operator and process engineer for isolating the source(s) of non-repeatability in measured unbalance data. The content of this standard addresses: Machine capability to achieve the specified unbalance tolerances and repeat within those tolerances. Tooling capability to repeat within the specified unbalance tolerances. Rotor characteristics that may preclude repeating within the required unbalance tolerances.
Standard

Free-Rolling Cornering Test for Truck and Bus Tires
2023-05-10
CURRENT
J2429_202305
This SAE Recommended Practice describes a test method for determination of heavy truck (Class VI, VII, and VIII) tire force and moment properties under cornering conditions. The properties are acquired as functions of normal force and slip angle using a sequence specified in this practice. At each normal force increment, the slip angle is continually ramped or stepped. The data are suitable for use in vehicle dynamics modeling, comparative evaluations for research and development purposes, and manufacturing quality control. This document is intended to be a general guideline for testing on an ideal machine. Users of this SAE Recommended Practice may modify the recommended protocols to satify the needs of specific use-cases, e.g., reducing the recommended number of test loads and/or pressures for benchmarking purposes. However, due care is necessary when modifying the protocols to maintain data integrity.
Standard

Actuation System Data Summary for Missiles and Launch Vehicles
2023-04-26
CURRENT
AIR1855A
This SAE Aerospace Information Report (AIR) includes all missile and launch vehicle actuation systems, including electrohydraulic, electropneumatic, and electromechanical types. The data for many systems are not complete. As more information becomes available, periodic updates will be issued to complete existing data sheets and to add new ones. An index by type of vehicle and by type of actuation system is included. The actual data sheets in the body of the report are organized in alphabetical order.
Standard

Vibration Test Machine and Operation Procedure
2023-04-04
CURRENT
J577_202304
This SAE Recommended Practice provides procedures and information to conduct vibration (impact) tests on lighting devices and their components as well as other safety equipment used on vehicles.
Standard

Road Load Tire Model Validation Procedures for Dynamic Behavior
2023-03-14
CURRENT
J2812_202303
This SAE Recommended Practice describes an evaluation procedure for validating tire models for use in road load simulations and assesses the relevant dynamic behavior of tires. The laboratory test utilized is a “cleat” test, where a rolling tire on a drum encounters a cleat and the resulting dynamic forces and moments are measured. This test is described in SAE J2730, “Dynamic Cleat Test with Perpendicular and Inclined Cleats”. The test is commonly used to identify tire model parameters. In this recommended practice, requirements for the measurement of the tire’s response are described along with data processing techniques and calculations used to quantitatively compare the tire model’s calculated response to the tire’s response measured on test. This recommended practice addresses both the tire model structure and its parameters.
Standard

Combined Cornering and Braking Test for Truck and Bus Tires
2023-03-01
CURRENT
J2675_202303
This SAE Recommended Practice describes a test method for determination of heavy truck (Class VI, VII, and VIII) tire force and moment properties under combined cornering and braking conditions. The properties are acquired as functions of slip angle, normal force, and slip ratio. Slip angle and normal force are changed incrementally using a sequence specified in this document. At each increment, the slip ratio is continually changed by application of a braking torque ramp. The data are suitable for use in vehicle dynamics modeling, comparative evaluations for research and development purposes, and manufacturing quality control. This document is intended to be a general guideline for testing on an ideal machine, and modifications to the protocols recommended within are expected depending on the requirements of each customer. Due care is necessary when modifying protocols to ensure that the integrity of the data is maintained.
Standard

Thrust Test Device
2023-02-20
CURRENT
J1286_202302
This method covers electric outboards that are rated in terms of static thrust.
Standard

Subjective Rating Scale for Vehicle Ride and Handling
2023-02-14
WIP
J1441
This SAE Recommended Practice establishes a rating scale for subjective evaluation of vehicle ride and handling. The scale is applicable for the evaluation of specific vehicle ride and handling properties, for specified maneuvers, road characteristics and driving conditions, on proving ground and public roads. The validity of the evaluation is restricted to the individual ride and handling disciplines defined by these maneuvers and to the particular combination of conditions of the vehicle (e.g., equipment, degree of maintenance) and of the environment (e.g., road, weather). This rating scale may not be suitable for some applications, such as specific types of ride or handling qualities, driver populations and market segments, or for correlating with objective measures. Appendix A - Other Scales discusses rating scales that better suit such applications.
Standard

Ambulance Modular Body Evaluation - Quasi-Static Loading for Type I and Type III Modular Ambulance Bodies
2023-02-06
CURRENT
J3057_202302
This SAE Recommended Practice describes the test procedures for conducting quasi-static modular body strength tests for ambulance applications. Its purpose is to establish recommended test practices which standardize the procedure for Type I and Type III bodies, provide ambulance builders and end-users with testing procedures and, where appropriate, provide acceptance criteria that, to a great extent, ensures the ambulance structure meets the same performance criteria across the industry. Descriptions of the test set-up, test instrumentation, photographic/video coverage, and the test fixtures are included.
Standard

Interline Air Cargo Pallet Nets
2023-01-13
CURRENT
AS1492C
This document establishes dimensional, structural, and environmental requirements for Type II/2 interline pallet nets. Type II/2 covers NAS3610/AS36100 code sizes.
Standard

Interline Air Cargo Pallets
2023-01-13
CURRENT
AS1491B
This SAE Aerospace Standard specifies the dimensional, design criteria, fabrication, performance, operational, environmental, and testing requirements for interline pallets requiring airworthiness approval for loading onto civil transport aircraft equipped with NAS3610/AS36100 restraint systems and using pallet nets meeting the requirements of AS1492. Type II/2 covers NAS3610/AS36100 code sizes. Type III pallets have been removed from this SAE Aerospace Standard revision.
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