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Mathematical Modelling of Door Shut-line Definition in CATIA

Becton Dickinson-Pawan Pandey
Mahindra & Mahindra, Ltd.-Hasan Askari, Sreebalajinarayanan Raadhaasaminathan
  • Technical Paper
  • 2019-28-0107
To be published on 2019-10-11 by SAE International in United States
Door shut-line definition is the first vital step in car body door engineering and depends on the hinge position, hinge shape, manufacturing capabilities and other parameters. In the design process, once the hinge axis definition is finalized door shut-line is defined which should satisfy two major requirements. The requirements are clearance between the door outer surface with its surrounding components (like hinges, fender, other door etc.) and assembly feasibility. The above conditions must be checked on different locations of the door as well as w.r.t different openings of the door. The paper presents a mathematical model to determine the door shut-line position with great computational efficiency. This method propounds closure engineer with parameters to define the shut-line rather than cumbersome manual iterative process. Instead of following an iterative approach to determine a limit for the shut-line, paper presents a mathematical formulation with an implicit equation. An innovative approach to solve implicit equation on CATIA is also discussed which significantly reduces the processing time. This paper inherently discusses a series of challenges which a user faces…

Step & Repeat: Reduce Derivative Aircraft Development Risk with Design Reuse

Mentor-Muhammad Askar
  • Technical Paper
  • 2019-01-1871
To be published on 2019-09-16 by SAE International in United States
Designing derivative aircraft is a complex process with potentially large amounts of program risk. In this paper we present new technologies such as digital interface control documents, and generative design that can transform this process. Employing these types of technologies makes the process more verifiable and repeatable. The paper explains how the technologies can be adopted from the early definition of components & LRUs, to their aggregation into reusable subsystems, as well as the automation and validation processes that can be built around them to reduce the associated complexity and program risk.

Brake Pedal Feeling Comfort Analysis for Trucks with Pneumatic Brake System

Ford Motor Company-Wesley Bolognesi Prado, Silvia Faria Iombriller, Marco Andre Silva, Lázaro Renato Oliveira
  • Technical Paper
  • 2019-01-2140
To be published on 2019-09-15 by SAE International in United States
The brake pedal is the brake system component that the driver fundamentally has contact and through its action wait the response of the whole system. Each OEM defines during vehicle conceptualization the behavior of brake pedal that characterizes the pedal feel that in general reflects not only the characteristic from that vehicle but also from the entire brand.Technically, the term known as Pedal Feel means the relation between the force applied on the pedal, the pedal travel and the deceleration achieved by the vehicle. Such relation curves are also analyzed in conjunction with objective analysis sheets where the vehicle brake behavior is analyzed in test track considering different deceleration conditions, force and pedal travel.On technical literature, it is possible to find some data and studies considering the hydraulic brakes behavior. However, for pneumatic brake systems, the pedal feel theoretical study is not usual, where is normally used for these developments, exclusively the subjective evaluation which become necessary to have more specialists to define the brake pedal behavior.Throughout this article will be revised the characteristics concepts…

Component Nomenclature - Articulated Log Skidder, Rubber-Tired

MTC4, Forestry and Logging Equipment
  • Ground Vehicle Standard
  • J1109_201908
  • Current
Published 2019-08-07 by SAE International in United States

This SAE Standard includes names of major components and parts particular to this type of machine.


Trucks with INTUITION

SAE Truck & Off-Highway Engineering: August 2019

Sebastian Blanco
  • Magazine Article
  • 19TOFHP08_04
Published 2019-08-01 by SAE International in United States

Perceptive Automata partners with Volvo Trucks to demonstrate AI technology that can determine when pedestrians will cross the road.

The automotive and commercial vehicle industries are working on answers to a tremendous number of questions no one bothered to ask before. Volvo, for example, wants to know if vehicles can have human intuition.

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Terms, Definitions, and Acronyms Counterfeit Materiel or Electrical, Electronic, and Electromechanical Parts

G-19T Terms and Definitions
  • Aerospace Standard
  • AIR6273
  • Current
Published 2019-07-30 by SAE International in United States

The SAE Aerospace Information Report (AIR) provides standardized terms, definitions, and acronyms that may be used in the G 19 and G-21 documents, unless otherwise specified in those documents. The SAE International series of documents that address the mitigation of suspect and counterfeit parts will reference this document in their respective Applicable Documents sections.


Glossary of Carbon Steel Sheet and Strip Terms

Sheet and Strip Steel Committee
  • Ground Vehicle Standard
  • J940_201907
  • Current
Published 2019-07-29 by SAE International in United States

This glossary is intended to provide engineers, metallurgists, and production personnel with uniform definitions of commonly used carbon sheet and strip terms. The glossary serves to supplement information and photographs reported in SAE J810, J763, J877, J863, and J403.


Automotive Engineering: July/August 2019

  • Magazine Issue
  • 19AUTP08
Published 2019-07-25 by SAE International in United States
Extending the ICE age Future vehicle propulsion is not a single-solution challenge. Top engineers take Automotive Engineering into the next combustion-engine frontier.FCA's Micky Bly amping up electrification New powertrain boss Micky Bly and his team are building an advanced propulsion-strategy roadmap that includes at least one more ICE development cycle.Ford's Dave Filipe has some powerful choices to make These are interesting days for those managing global propulsion portfolios, but Ford's powertrain lead says a smart team has him relishing the challenges.GM's Ken Morris lives the pace of the powertrain revolution The purview of GM's VP of global product integrity includes the rapidly-shifting landscape of powertrain engineering.Hyundai's John Juriga optimizing ICE and fuels Hyundai is building on its lean-combustion knowledge in a DoE-sponsored collaborative program with MTU and Phillips 66.Other expert voices The 2019 'ICE's Still Not Dead' panel discussion was very much alive.Mahle MJI technology sparking ignition advances Engine-development supplier Mahle believes pre-chamber combustion technology for production gasoline engines has a promising future.For EVs to 'win,' battery tech must outpace oil-industry advances Analysts say moderate…

One-Way Clutches - Nomenclature and Terminology

Automatic Transmission and Transaxle Committee
  • Ground Vehicle Standard
  • J1087_201907
  • Current
Published 2019-07-24 by SAE International in United States

The definitions and illustrations in this SAE Recommended Practice are intended to establish common nomenclature and terminology for automotive transmission one-way clutches.


LED Signal and Marking Lighting Devices

Signaling and Marking Devices Stds Comm
  • Ground Vehicle Standard
  • J1889_201907
  • Current
Published 2019-07-01 by SAE International in United States
This SAE Recommended Practice applies to functions of motor vehicle signaling and marking lighting devices which use light emitting diodes (LEDs) as light sources. This report provides test methods, requirements, and guidelines applicable to the special characteristics of LED lighting devices. This Recommended Practice is in addition to those required for devices designed with incandescent light sources. This report is intended to be a guide to standard practice and is subject to change to reflect additional experience and technical advances.
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