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The Road to the Top is Not on the Map: Conversations with Top Women of the Automotive Industry

Terry Barclay
Center For Automotive Research-Carla Bailo
  • Book
  • R-491
To be published on 2019-10-01 by SAE International in United States

Carla Bailo, CEO of the Center for Automotive Research, and Terry Barclay, CEO of Inforum, bring together over 30 of the most influential women in the automotive industry to share their insight and advice. From suppliers to OEMs, they hail from every corner of the industry.

 
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Advanced Nanocomposite Low Adhesion Icephobic Coating for Aerospace Applications

Oceanit Laboratories Inc.-Vinod Veedu, Sumil Thapa, Ganesh Kumar Arumugam
Published 2019-06-10 by SAE International in United States
Icing is a major safety issue for flight operations in the civil, defense and space sectors. Ice can form on critical components during takeoff/landing, or while in service, depending on prevailing weather conditions. Aircraft manufacturers relies on two different approaches to prevent ice buildup using an active anti-icing system to melt ice buildup or deicing chemicals/ice repellent surface to minimize the buildup ice. The use of active anti-icing systems offers good protection, however can add significant penalty to overall weight, energy consumption and cost. Aerospace industry is in need for an advanced ice repellent surface to effectively minimize ice buildup on critical components with no modification to existing design can provide significant relief to ice prone systems. In this paper, Oceanit will present its most advanced nanocomposite low ice adhesion icephobic coating technology that was developed and demonstrated for application on metallic surfaces to provide the lowest ice adhesion to significantly reduce ice buildup. Oceanit’s advanced icephobic coating was tested to be one of the lowest ice adhering coating (ice adhesion strength = 5.1kPa) ever…
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Radius-of-Load or Boom Angle Indicating Systems

Cranes and Lifting Devices Committee
  • Ground Vehicle Standard
  • J375_201906
  • Current
Published 2019-06-10 by SAE International in United States
This SAE Recommended Practice applies to cranes used in lifting-crane service which are equipped with radius-of-load or boom angle indicating devices.
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Load Indicating Devices in Lifting Crane Service

Cranes and Lifting Devices Committee
  • Ground Vehicle Standard
  • J376_201906
  • Current
Published 2019-06-10 by SAE International in United States
This SAE Recommended Practice applies to cranes equipped with load indicating devices used in lifting crane service.
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Development of an Accelerated Test for Tire Flat-Spotting

NissanTechnical Center North America-Farokh Kavarana, Scott Fritz
Published 2019-06-05 by SAE International in United States
Tire flat-spotting occurs when tires remain in a loaded condition without rolling for an extended period of time, and can be temporary or permanent depending on the length of storage, vehicle loading and environmental factors. Tire non-uniformity caused from flat-spots often induce shake and shimmy vibration in vehicles due to increased tire-wheel force variation input into the chassis. This results in increased warranty costs for OEMs and tire suppliers and customer dis-satisfaction in third-party quality surveys such as J. D. Power IQS. Flat-spotting is of particular concern for slow-moving vehicle inventory parked for long periods at plants and/or dealership lots.OEMs often stipulate or recommend inventory storage practices for dealers that require physical movement of vehicles at some set duration to reduce the risk of tires developing permanent flat-spots. OEMs also provide component level flat-spotting requirements to tire manufacturers during sourcing and specification timing to secure their internal requirements and targets. The study in this paper initially determined real-world flat-spotting levels on an actual vehicle during the adverse summer months of Arizona. Tire uniformity measured on…
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New Half Shaft Bench Test Methodology for NVH Characterization

FCA US LLC-Wei Yuan, Ahmad Abbas, Francisco Antonio Sturla
Siemens PLM Software-Saeed Siavoshani, Prasad Balkrishna Vesikar
Published 2019-06-05 by SAE International in United States
The main purpose of this paper is to develop a reliable bench test to understand the vibratory behavior of the half shafts under applied torque comparable to an idle condition. In some cases, the half shaft path is a major factor influencing the idle vibration in the vehicle. At idle condition vehicle vibrations are caused by engine excitation and then they pass through different paths to the body structure. Half shaft manufacturers generally characterize shaft joints for their frictional behavior and typically there is no data for vibration characteristics of the half shaft under idle conditions. However, for predictive risk management, the vibratory behavior of the half shaft needs to be identified. This can be achieved from measured frequency response functions under preloaded test conditions.This bench test enables manufacturers to conduct comprehensive design of experiments on the impact of powertrain vibration input while transmitting through the half shaft into the vehicle system. This method enables the study of the half shaft at the component level, because studying the half shaft at vehicle level is difficult…
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Comparing Interior Cabin SPL Suppression Performance Based on Vying Flat Sample Data and Requirements

California State University- Long Beach-Allen Teagle-Hernandez
HSEA Technology, Inc.-Takehisa Matsuda
Published 2019-06-05 by SAE International in United States
Since the vehicle development time becomes shorter and shorter every year in automobile industry, it is becoming more important for automotive engineers to be able to analyze each part going into a vehicle in early stage of development. Noise and Vibration (NV) engineers are often required to evaluate the performance of sound proof materials and quickly choose which one should be used in a vehicle being developed in the early stage. In a typical automobile development, Original Equipment Manufacturers (OEMs) and trim suppliers often communicate via flat sample performance, Insertion Loss and Absorption Coefficient, to decide which parts should be used for a vehicle. Flat sample data is valuable, since it shows the inherit characteristics of the layered product but should not be used as the only metric to decide which product goes into the automobile. The final metric for NV performance should be the Sound Pressure Level (SPL) suppression performance. This paper will introduce a process and tools that enable NV engineers to quickly compare the SPL suppression performance of products and to determine…
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Understanding the Stick Slip Behavior of Plastics and Target Setting: An OEM Perspective

Mahindra & Mahindra, Ltd.-Sundaralingam Somasundharam, Amit Kumar, Riyazuddin Mohammed, Prasath Raghavendran
Published 2019-06-05 by SAE International in United States
Automotive OEMs are aggressively using different materials for interiors due to value proposition and variety of options available for customers in market. Excessive usage of different grade plastics with zero gap philosophy can cause stick slip effect leading to squeak noise. Even though systems and subsystems are designed using best practices of structural design and manufacturing tolerances, extreme environmental conditions can induce contacts leading to squeak noise. Appropriate selection of interface material pairs can minimize the possibilities of squeak conditions. Stick-slip behavior of different plastics is discussed in the present study, along with critical parameters during material compatibility testing in a tribological test stand. Friction coefficient of different material pairs for a defined normal load and sliding velocity are analyzed for patterns to recognize squeaks versus time. An OEM perspective is presented with focus on material selection using objective metrics like coefficient of friction and set targets for raw material suppliers regarding compatible materials. In the next step, an algorithm based on machine learning approach has been developed for estimating stick-slip performance.
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A Process to Improve Passenger Vehicle Sound and Vibration Quality Using a Combination of SPC and CAE Analysis

Altair Engineering-Xiaolei Song
Bruel & Kjaer North America, Inc.-Giovanni Rinaldi
Published 2019-06-05 by SAE International in United States
A manufacturer of automotive equipment set out to implement a process to include sound and vibration quality targets for powertrain and road noise. CAE models have been successfully used in the early phase of the vehicle development process, but the use of these models to assess the customer’s subjective sound and vibration experience is often missing. The goal here was to use a CAE model driven by sound and vibration quality targets for early identification of problem areas based on jurors’ preference. These quality targets were cascaded via Source-Path-Contribution (SPC), and optimizations were performed to meet the targets using the CAE model.
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Driveline NVH Integration of An NA Truck Program

American Axle & Manufacturing-Ying Peng, Zhenghong Shi, Christopher Folts, Gregory Kopp, Zhaohui Sun, Alexander Sandstrom
Published 2019-06-05 by SAE International in United States
In the current automotive industry, it is common that the driveline subsystem and components are normally from different automotive suppliers for OEMs. In order to ensure proper system integration and successful development of driveline system NVH performances, collaboration efforts between OEMs and suppliers are very demanding and important.In this paper, a process is presented to achieve successfulness in developing and optimizing vehicle integration through effective teamwork between a driveline supplier and a major OEM. The development process includes multiple critical steps. They include target development and roll down, targets being specific and measurable, comprehension of interactions of driveline and vehicle dynamics, accurate definition of sensitivity, proper deployment of modal mapping strategy, which requires open data sharing; and system dynamics and optimization. More specially, the supplier can work with OEM to seek the most cost-effective solutions, through tuning the driveline system dynamics to provide "quiet" frequency zone against vehicle sensitivity, to avoid normally needed costly suspension changes. Two case studies of a pick-up vehicle driveline program integration are used in this paper to illustrate the effectiveness…
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