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Measurement and Evaluation of Vacuum Suction Cups using Digital Image Correlation

Oakland University-Wan Xu, Boyang Zhang, Rong Wang, Wen Ma, Bicheng Guo, Lianxiang Yang
  • Technical Paper
  • 2020-01-0542
To be published on 2020-04-14 by SAE International in United States
As vacuum suction cups are widely used in stamping plants, it becomes urgent and important to understand their performance and failure modes. Vacuum suction cups are employed to lift, move, and place sheet metal instead of human’s hands. Occasionally the vacuum cups would fail and drop parts, even it would cause expensive delays in the production line. In this research, several types of vacuum cups have been studies and compared experimentally. A new tensile device and test method was developed to measure the pulling force and deformation of vacuum cups. The digital image correlation technique has been adopted to capture and analyze the contour, deformation and strain of the cups under different working conditions. The experimental results revealed that the relevant influential parameters include cup type, pulling force angles, vacuum levels, sheet metal curvatures, etc. Also, the deformation distribution and history of the cups denote the weak part and failure mechanism during operation. Moreover, this work could help designers and operators thoroughly understanding the performance of vacuum suction cups and greatly improved in further work.
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More than a brake

Robert Bosch Ltda – Chassis Systems Control Unit-Emerson Batagini
  • Technical Paper
  • 2019-36-0020
Published 2020-01-13 by SAE International in United States
The automotive world is battling every day to provide innovation and product development without compromising the environment. The electrification of the engines can be a factor that divides eras into the market. The conventional brake system links the act of apply the brake pedal with the stop or deceleration of the vehicle. This is now possible thanks to the long-term use of the vacuum generated by the combustion engine or by auxiliary equipment (vacuum pump). New brake system technologies provides, without a vacuum source, more efficient and safer braking than the current power brake system. Embedded in technological developments, these systems interacts with other vehicle components (cameras, radars, ABS, ESC) bringing the driver advanced safety conditions.
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Optical Window for Far-IR Instruments Using Thin TOPAS® Film

  • Magazine Article
  • TBMG-35809
Published 2020-01-01 by Tech Briefs Media Group in United States

Most flight instruments that use cryogenics or non-cryogenics require physical isolation of their internal instruments (sensors, detectors, spectrometers) from the external environment. This isolating window film also needs to be transparent in the operational frequency of the internal instruments to detect electromagnetic waves. As such, the film needs to have the necessary strength to hold the vacuum pull and provide a low transmission loss.

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Tips for Reducing Error When Using Eddy Current Measuring Techniques

Aerospace & Defense Technology: December 2019

  • Magazine Article
  • 19AERP12_02
Published 2019-12-01 by SAE International in United States

Inductive eddy current technology is an extremely versatile non-contact method for measuring an object's position, distance, or vibration. Unaffected by environmental contaminants or target finish characteristics, these sensors can operate in a vacuum or in fluids, so they work well for dirty applications, like those with oil or dust present. To get the most out of eddy current sensors, follow these tips for reducing errors that can affect a measurement's accuracy.

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Vehicle Interior cleanliness tracker

Aptiv Components India Pvt Ltd.-Vijayalakshmi kr, Anitha Loganathan
  • Technical Paper
  • 2019-28-2466
Published 2019-11-21 by SAE International in United States
The future of mobility is being driven towards fully autonomous driving. As a result, people spend majority of the time in vehicles for chores other than driving. The focus of automotive makers shifts towards providing best-in-class passenger comfort. One of the least focused area in passenger comfort is vehicle interior cleanliness which requires periodic human intervention. An intelligent vehicle can outsmart a human by self-caring to maintain the cleanliness elements on floor, seat and roof. This paper addresses subjects like wetness, dirt and stains in the vehicle interior utilizing the capability of Interior sensing platform. An internally mounted camera in the vehicle can capture images of the interior and apply image processing techniques to identify the subjects mentioned above. The wetness on the floor mats can lead to moldy odor, corrosion, failure of the electronic components in the car. Over a period, the vehicle upholstery or seats absorb the dirt and stains and lead to foul smell. HVAC can be used for drying the interior as appropriately detected by the system. A modern system to…
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Vacuum Excavation and Sewer Cleaning Equipment Classification and Nomenclature

MTC9, Trenching and Horizontal Earthboring Machines
  • Ground Vehicle Standard
  • J3106_201911
  • Current
Published 2019-11-19 by SAE International in United States
This document lists common terminology for vacuum excavation and sewer cleaning equipment, including component names and specific work completed by these machines. This document also illustrates some common types of equipment.
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Experimental Investigation of Silicon Carbide Nanoparticles Reinforced Magnesium Alloy (AZ91E) Metal Matrix Composite by Vacuum Stir Casting Method

Centre for Automotive Materials, SRMIST-Chandradass Jeyaseelan, Baskara Sethupathi Paramathma
PRIST-Thirugnana Sambandham Thangavel, Kannan Mahadevan
Published 2019-10-11 by SAE International in United States
In the present investigation silicon carbide nanoparticles reinforced magnesium alloy [AZ91E] composites were prepared by vacuum stir casting process in an inert atmosphere. Required amount of silicon carbide nanoparticles with grain size of 50nm was added into AZ91E molten melt with constant stir speed of 600 rpm and vacuum pressure of 1 lpm to obtain magnesium alloy composite containing 0, 5, 7.5 and 10 wt.% SiCp nanoparticles. The prepared composites were subjected to mechanical and microstructure studies. The mechanical properties were found to increase with the addition of silicon nanoparticles compared to unreinforced magnesium alloy. The maximum impact strength, yield strength and tensile strength were found to be 29.13J, 156 MPa and 401.13 MPa respectively. Microstructure studies reveal uniform distribution of silicon carbide in magnesium alloy matrix.
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Solid-State Microwave Power Module

  • Magazine Article
  • TBMG-35350
Published 2019-10-01 by Tech Briefs Media Group in United States

Historically, the term microwave power module (MPM) has been associated with a small, fully integrated, self-contained radio frequency (RF) amplifier that combines both solid-state and microwave vacuum electronics technologies. Typically, the output power of these MPMs is on the order of about 100 Watts CW over an octave bandwidth. Because of their smaller size and lower mass compared to conventional traveling-wave tube amplifiers, these MPMs may have applications in electronic warfare systems.

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Solid-State Microwave Power Module

Aerospace & Defense Technology: October 2019

  • Magazine Article
  • 19AERP10_05
Published 2019-10-01 by SAE International in United States

Historically, the term microwave power module (MPM) has been associated with a small, fully integrated, self-contained radio frequency (RF) amplifier that combines both solid-state and microwave vacuum electronics technologies. Typically, the output power of these MPMs is on the order of about 100 Watts CW over an octave bandwidth. Because of their smaller size and lower mass compared to conventional traveling-wave tube amplifiers, these MPMs may have applications in electronic warfare systems.

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Heat Treatment of Parts in a Vacuum

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS2769C
  • Current
Published 2019-07-12 by SAE International in United States
This specification establishes the requirements and procedures for heat treating parts in vacuum/partial pressure and shall be used as a supplementary document to primary heat treating specifications as applicable.
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