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Viewing 1 to 30 of 5667
2015-06-15
Technical Paper
2015-01-2341
Marc Ingelmann, Holger Bickelmann
BASF supplies the automotive industry with parts made of the Micro-cellular Polyurethane Elastomer - Cellasto®, a material with unique characteristics in NVH applications. For over 50 years our automotive customers are relying on our materials, with the Jounce Bumper being our best known applications. Top mounts and coil-spring-isolators are also a key offering to the industry. A lot of functions in automotive and non-automotive products are using Cellasto® as damping element, such as armrests, seats, torque-dampers, handheld machines etc. The dynamic performance of Cellasto , combined with the ability to work in limited packages, makes it the ideal choice. The amplitude selective damping fits to the automotive requirements: small amplitudes are generating a low damping of the material; high amplitudes are increasing the damping.
2015-06-15
Technical Paper
2015-01-2204
Michael Funderburg
The ability of various plasticizers to impact the vibration damping properties of polyvinyl chloride (PVC) plastisols was investigated. A material must have good viscoelastic properties in order for it to be an effective vibration damper. However, it is evident that not all viscoelastic materials are good vibration dampers. Consider flexible (plasticized) PVC, for example. PVC formulations demonstrating the same glass transition temperature may have widely different damping capabilities. This presentation will show that the type of plasticizer substantially impacts the damping ability of the final PVC composite. Initially, flexible PVC formulations with varied plasticizers were screened via dynamic mechanical thermal analysis (DMTA) to determine which ones would likely have good damping properties. Formulations which exhibited promising results with DMTA were then tested via an Oberst bar damping test (SAE J1637).
2015-06-15
Technical Paper
2015-01-2259
Jan Zuleeg
Tribological contacts with plastic or polymers tend to show stick-slip and have the ability to generate noise. With the help of lubricants like bonded coatings, greases and fluids the tribological properties can be well-directed and affected. In this paper it is shown, how well known theories about polymer friction from the literature can be used for the friction of lubricants and how these findings can help in the development of new lubricants. With an adequate stick-slip test rig (Ziegler Stick-Slip test rig) it is demonstrated, how the theories can be confirmed. The introduced test methods are used in the development for lubricants for automotive applications e.g. in the interior of the car including invisible lubricants developed for Class "A" surfaces.
2015-06-15
Technical Paper
2015-01-2190
Manchi Venkateswara Rao, S Nataraja Moorthy, Prasath Raghavendran
Mount development and optimization plays a significant role in vehicle NVH refinement as they significantly influence overall driving experience. Dynamic stiffness is a key parameter that directly affects the mount performance. Conventional dynamic stiffness evaluation techniques are cumbersome and time consuming. The dynamic stiffness of mount depends on the load, frequency of application and the displacement. The above parameters would be far different in the test conditions under which the mounts are normally tested when compared to operating conditions. Hence there is need to find the dynamic stiffness of mounts in actual vehicle operating conditions. In this paper, the dynamic stiffness of elastomeric mounts is estimated by using a modified matrix inversion technique popularly termed as operational path analysis with exogenous inputs (OPAX).
2015-05-18
WIP Standard
AMS3833B
This specification covers a polyester and cotton blended broadcloth, chemically treated with a durable press finish and cured.
2015-05-18
WIP Standard
AMS3328C
This specification covers a fluorosilicone (FVMQ) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes.
2015-05-18
WIP Standard
AMS3329C
This specification covers a fluorosilicone (FVMQ) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes.
2015-05-18
WIP Standard
AMS3330C
This specification covers a fluorosilicone (FVMQ) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes.
2015-05-18
WIP Standard
AMS3331C
This specification covers a fluorosilicone (FVMQ) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes.
2015-05-13
Standard
AMS3529B
This specification covers an unpigmented grade of vinyl plastic, unfilled and not containing plasticizer, in the form of sheet and film.
2015-05-13
Standard
AMS3680D
This specification covers a silica fiber insulation in the form of felted pads, flat or in rolls, as ordered.
2015-05-13
Standard
AMS3661D
This specification covers one grade of polytetrafluoroethylene (PTFE) resin in the form of film and film tape.
2015-05-13
Standard
AMS3733C
This specification covers a highly filled epoxy potting compound supplied as a two-component system.
2015-05-13
Standard
AMS3732B
This specification covers a filled epoxy resin formulation, supplied as a one-component system, requiring an oven cure for attainment of its properties.
2015-05-13
Standard
AMS3647D
This specification covers polyfluoroethylenepropylene in the form of film and sheet 0.020 inch (0.51 mm) and under in nominal thickness. These products have been used typically for electrical, electronic, and mechanical applications requiring a chemically-inert film of the fluorocarbon family, having high dielectric strength and volume resistivity, and being free from pinholes and electrical flaws. Usage is not limited to such applications.
2015-05-13
Standard
AMS3662D
This specification covers one grade of polytetrafluoroethylene resin in the form of film.
2015-05-13
Standard
AMS3652D
This specification covers one grade of polytetrafluoroethylene (PTFE) resin in the form of film, normally produced by skiving. This film has been used typically for gaskets and other parts for use up to 260 degrees C (500 degrees F) where chemical resistance or anti-stick characteristics are required but where high mechanical or electrical characteristics are not important, but usage is not limited to such applications.
2015-05-13
Standard
AMS3676D
This specification covers resin-bonded glass fibers in the form of felted pads, flat or in rolls.
2015-05-04
WIP Standard
J576
This SAE Recommended Practice provides test methods and requirements to evaluate the suitability of plastic materials intended for optical applications in motor vehicles. The tests are intended to determine physical and optical characteristics of the material only. Performance expectations of finished assemblies, including plastic components, are to be based on tests for lighting devices, as specified in SAE Standards and Recommended Practices for motor vehicle lighting equipment. Field experience has shown that plastic materials meeting the requirements of this document and molded in accordance with good molding practices will produce durable lighting devices.
2015-04-28
Standard
J863_201504
This SAE Recommended Practice describes methods for determining plastic deformation encountered in the forming or drawing of sheet steel.
Viewing 1 to 30 of 5667

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