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Design optimization for Engine mount

Prateek Sharma
VE Commercial Vehicles, Ltd.-Mahendra Parwal
  • Technical Paper
  • 2019-28-2540
To be published on 2019-11-21 by SAE International in United States
The mounting of an engine plays important role in controlling the vibration transmissibility, alignment of transmission unit within specific limit. Design of any mounting system mainly depends on stiffness, allowed deformation and transmissibility of force, natural frequency and size w.r.t space constraints etc. This paper helps to study the behavior of engine mount with different layer of rubber with defer stiffness. Firstly the design of front engine mount with single rubber layer according to space constraint in vehicle and then analysis is done to determine the deformation and various results using CAE technique. As per the results, design is modified with varying layer of rubber pad and again analysis is done with same boundary condition followed by improved results.
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REDUCTION OF STEERING VIBRATION WITH THE APPLICATION OF DYNAMIC TESTING AND ANALYSIS

John Deere India Pvt Ltd.-Amol Pimpale, Prashant Bardia, Pankaj Vaste, Rohit Pawar
  • Technical Paper
  • 2019-28-2421
To be published on 2019-11-21 by SAE International in United States
KEYWORDS: Steering System, Engine Vibrations, Dynamics, Modal Testing, Modal Analysis, ABSTRACT - In modern agriculture, the tractor’s use is indispensable and essential for various operations like cultivation, soil preparation, pulverization and many more. However, despite being efficient machines, tractors may be subjected to different level of vibrations in various parts of their structure. The vibration often plays the key cause of invalidation and component failures and also, affecting the ride and comfort. Since it is known that such vibration factors can affect the behavior in many ways, an understanding of their dynamic response is warranted. In this paper, case study related to reduction of steering system vibration is presented. Objective and Background: Vibration reduction is linked with the reduction either at source or on path. For such, it is necessary to know the reality of machines, component and mechanisms to mitigate the vibration levels on the tractor. From the testing and analysis of the components, it is possible to calculate the dynamic properties and vibration average level. The vibration reduction decreases the damages caused by…
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Minimum Operational and Maintenance Responsibilities for Aircraft Tire Usage

A-5C Aircraft Tires Committee
  • Aerospace Standard
  • ARP5265B
  • Current
Published 2019-10-17 by SAE International in United States
This SAE Aerospace Recommended Practice (ARP) sets forth criteria for the installation, inflation, inspection, and maintenance of aircraft tires as well as criteria for the maintenance of the operating environment so as to achieve the purpose stated in 1.1. (Definitions of terms related to aircraft tires are found in 2.2.)
Annotation ability available
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Test Slabs, High Strength, Fluorosilicone (FVMQ), 55 - 65

AMS CE Elastomers Committee
  • Aerospace Material Specification
  • AMS3217/7B
  • Current
Published 2019-10-16 by SAE International in United States

This specification covers a high strength fluorosilicone (FVMQ) rubber stock in the form of molded test slabs.

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Rubber: Methyl Vinyl Silicone (MVQ), High Temperature Resistant, Low Compression Set, 65 - 75 Type “A” Hardness, for Seals in a Static Application - Resistant to 500 °F (260 °C)

AMS CE Elastomers Committee
  • Aerospace Material Specification
  • AMS7264B
  • Current
Published 2019-10-16 by SAE International in United States

This specification covers a Methyl Vinyl Silicone (MVQ) rubber in the form of molded rings for aeronautical and aerospace applications. For sheet, strip, tubing, extrusions, and molded shapes it is the responsibility of the user to determine suitability.

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Test Slabs, Acrylonitrile Butadiene (NBR-H), Medium-High Acrylonitrile, 65 - 75

AMS CE Elastomers Committee
  • Aerospace Material Specification
  • AMS3217/1C
  • Current
Published 2019-10-16 by SAE International in United States

This specification covers a standard acrylonitrile butadiene (NBR-H) rubber stock with medium-high acrylonitrile content in the form of molded test slabs.

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Miniature Stretchable Pump

  • Magazine Article
  • TBMG-35296
Published 2019-10-01 by Tech Briefs Media Group in United States

Soft robots have a distinct advantage over rigid robots: they can adapt to complex environments, handle fragile objects, and interact safely with humans. Made from silicone, rubber, or other stretchable polymers, they are ideal for use in rehabilitation exoskeletons and robotic clothing. Soft bio-inspired robots could one day be deployed to explore remote or dangerous environments.

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Laboratory Speed Test Procedure for Passenger Car Tires

Highway Tire Committee
  • Ground Vehicle Standard
  • J1561_201909
  • Current
Published 2019-09-11 by SAE International in United States
This SAE Recommended Practice provides a method for testing the speed performance of passenger car tires under controlled conditions in the laboratory on a test wheel. This procedure applies to “standard load,” “extra load,” and “T-type high-pressure temporary-use spare” passenger tires.
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Laboratory Speed Test Procedure for Light Truck Tires

Highway Tire Committee
  • Ground Vehicle Standard
  • J1633_201909
  • Current
Published 2019-09-11 by SAE International in United States
This SAE Recommended Practice provides a method for testing the speed performance of light truck tires under controlled conditions in the laboratory on a test wheel.
This content contains downloadable datasets
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SEAL, BONDED, ALUMINUM ALLOY 6061-T6, AMS4027, MOLD IN GROOVE, NBR RUBBER, AMS-R-7362

A-6C2 Seals Committee
  • Aerospace Standard
  • AS27195B
  • Current
Published 2019-09-03 by SAE International in United States

Scope is unavailable.