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Load Distribution Optimization of seatbelts using validated finite element approach.

Anshul Satija-Anshul Satija
Joyson Safety Systems-Priyanshu Mishra, Ravi Gaurav, Virender Singh
  • Technical Paper
  • 2019-28-2575
To be published on 2019-11-21 by SAE International in United States
The seat belt system is one of most imperative component of the safety instrument family in a vehicle. The main purpose of seat belt is to minimize the injuries by preventing the occupant from impacting hard interior parts of the vehicle and also the passenger from being thrown-out from the vehicle in case of rollover accidents. The standard three-point belts, mounted to the vehicle in three places, namely anchor, D ring and buckle. The position of D ring is very important to distribute the impact load evenly to the occupants. Very high load in any of these locations could cause breakage of the mountings and also concentrated loading on the occupant chest of pelvis. This study mainly focuses on the seatbelt assembly performance improvement against ECE-R16 sled test. The sled test was carried out first using 28g peak acceleration pulse and measurement of forces at shoulder and anchor position was measured using the load cell. FE (Finite Element) model of the complete seatbelt assemble was developed including buckle, retractor and anchor plate. The simulation was…
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Clamp Selection and Installation Guide

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • ARP1897A
  • Current
Published 2019-05-20 by SAE International in United States
This document is prepared as an aid in the selection of clamping devices and their use in aerospace equipment for the installation and support of tubing and wiring. For recommended installation practices, refer to ARP994.
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Material Handler Nomenclature and Specifications

MTC C5, Excavators
  • Ground Vehicle Standard
  • J2506_201904
  • Current
Published 2019-04-15 by SAE International in United States
This SAE Standard establishes terminology and the content of commercial literature specifications for self-propelled crawler and wheeled material handlers, pedestal mounted material handlers and their equipment as defined in 3.1. Illustrations used here are not intended to include all existing commercial machines or to be exactly descriptive of any particular machine. They have been provided to describe the principles to be used in applying this document. (Material handlers share many design characteristics with hydraulic excavators and log loaders; primarily 360 degree continuous rotation of the upperstructure relative to the undercarriage or mounting. They differ in their operating application. Material handlers are used for the handling of scrap material and normally utilize grapples or magnets. Hydraulic excavators are used for the excavation of earth, gravel and other loose material utilizing a bucket. Log loaders are used for the handling of logs and trees and normally utilize grapples.)
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Thermal-Compensating Optics Housing

  • Magazine Article
  • TBMG-33692
Published 2019-02-01 by Tech Briefs Media Group in United States

Existing optics mounts sandwich the optic axially between two metal components, which can lead to optical surface damage and misalignment when exposed to fluctuating temperatures. Thermal-compensating optics housing capable of protecting the fragile optical materials in systems that see large thermal variations has been developed.

Reusable Breakaway Mounting Device

  • Magazine Article
  • TBMG-33413
Published 2018-12-01 by Tech Briefs Media Group in United States

Breakaway devices are used to mount objects to systems or structures (for example, cars, drones, helmets, buildings) and prevent damage when the objects fall away from the system. Unfortunately, even in ideal scenarios, many of these devices have limitations. Breakaway bolts and shear pins have the complication of breaking and becoming unusable thereafter. Reset-table mounting devices such as hook-and-loop fasteners, reusable adhesives, or rubber mounting devices do not provide proper stability in certain applications. Electromagnetic and electromechanical-based devices can be quite large and expensive, and require a power source.

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The Effect of Mounting Orientation of Resistive Particulate Matter Sensor on Signal Behavior

Shanghai FT Automotive Parts Co., Ltd-Huibo Huang
Published 2018-08-07 by SAE International in United States
Particulate Matter (PM) sensors are required to monitor the diesel particulate filters (DPF) malfunction. The resistive PM sensor concept is widely chosen for this purpose due to its functionality, costs and durability. The output signal of resistive PM sensor for interpreting and processing for diagnosing DPF status is significantly affected by the exhaust velocity and soot concentration in the vicinity of sensor sensing element. Theoretically, during the regeneration of PM sensor, no new accumulation of particles is possible. Even after the regeneration, PM cannot immediately be accumulated again, because of thermal inertia, the PM sensor requires a certain time for the thermalization of the sensor element by the exhaust gas. During the regeneration phase and the subsequent cooling phase, PM sensor is insensitive with respect to a possibly present soot concentration, but the choking phenomena of PM sensor can be observed, when soot depositing rate reaches a threshold value.
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Equivalent Stiffness and Equivalent Position for Torque Strut Mount in Powertrain Mounting System

SAE International Journal of Engines

DongFeng Motor Corporation Technical Center-Shao-Ju Qu, Jiong-Yang Shao, Peng-Jun Song
University of Science and Technology Beijing-Rang-Lin Fan, Chu-Yuan Zhang, Zhen-Nan Fei
  • Journal Article
  • 03-11-03-0021
Published 2018-06-18 by SAE International in United States
The torque strut is a key mount in three-point pendulum mounting system of powertrain. Its equivalent stiffness in two orthogonal directions is close to zero meanwhile the equivalent stiffness in another direction always remains the same as the original stiffness, which facilitates mounting system design and matching and has been widely used. In this article, it is aimed to answer the issues for the equivalence of torque strut mount theoretically, such as the equivalent linear stiffness, equivalent torsional stiffness and equivalent position. The torque strut mount has been simplified to an equivalent ordinary mount, the equivalent linear stiffness and equivalent torsional stiffness are derived, and has been verified by ADAMS, then the equivalent position is discussed. The effect of the mass of torque strut on powertrain modals is investigated. An equivalent model of powertrain mounting system with equivalent stiffness at equivalent position for torque strut is established, the results of the nature characteristics show that the equivalent torque strut model is usable in engineering.
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Mount - Thermocouple

E-32 Aerospace Propulsion Systems Health Management
  • Aerospace Standard
  • ARP464
  • Current
Published 2018-05-03 by SAE International in United States
No Abstract Available.
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SLEEVE, THREADLESS - FLEXIBLE, FIXED CAVITY, CURRENT CARRYING, SELF BONDING

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS7514A
  • Current
Published 2018-04-18 by SAE International in United States
No Abstract Available.
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ASSEMBLED COUPLING ENVELOPE, THREADLESS - FLEXIBLE, FIXED CAVITY, CURRENT CARRYING, SELF BONDING, ENVELOPE DIMENSIONS

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS7511A
  • Current
Published 2018-04-18 by SAE International in United States
No Abstract Available.
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