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Sensor Perception and Motion Planning for an Autonomous Material Handling Vehicle

Automotive Research Association of India (ARAI)-Sanjay A Patil
Vellore Institute of Technology-Sahil Prabhakar, Dani Priyanka, Ankit Ghosh
Published 2019-10-22 by SAE International in United States
The ground mobile robotics study is structured on the two pivotal members namely Sensor Perception and Motion Planning. Sensor perception or Exteroception comprises the ability of measurement of the layout of the environment relative to vehicle's frame of reference which is a necessity for the implementation of safe navigation towards the goal destination in an unstructured environment. Environment scanning has played a significant role in mobile robots application to investigate the unexplored environment in the sector of defence while transporting and handling material in warehouse and hospitals. Motion Planning is a conjunction of analyzing the sensor's information while being able to plan the route from starting point to the target destination. In this paper, a 3600 2-D LiDAR is used to capture the spatial information of the surrounding, the scanning results are presented in a local map and global map. The LiDAR’s output is further transformed into an Occupancy grid for the comprehension of the Motion planning module to process the path. Probabilistic Roadmap and Vector Field Histogram are two methods used for Motion Planning.…
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A Study on the Development of an Effective Framework for Implementation and Sustenance of an Obsolescence Material Management System in an Aerospace Supplier Manufacturing Industry Environment

GITAM School of Technology-Mani Rathinam Rajamani, Eshwaraiah Punna
Published 2019-10-11 by SAE International in United States
Obsolescence Material management plays an important and vital role in today’s modern Aerospace manufacturing, Aerospace Maintenance, Repair and Overhaul industry as well as Aerospace Distributors. Aerospace vehicles have a considerable longer product life-cycle when compared to any other consumer goods like automobile and electronics industry. With the advent of new, disruptive technologies, many sources and supplies of materials including COTS and Standard catalogue parts, components and goods, which are widely used in an Aerospace manufacturing environment, are diminishing at a considerable rate and thus result in their obsolescence before the end disposal of the product life cycle. It is one of the leading causes to the sale of counterfeit and fraudulent parts and components, which can result in considerable deterioration of Quality and Cost to Customer. This technical paper emphasizes on the need for implementation of an effective Obsolescence management framework which an Aerospace company can follow through defining, deploying and sustaining Obsolescence Management through Policy, Procedures, Process and People methodology to be followed at manufacturing, maintenance and to identify proactively, notify and mitigate the…
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A Study on the Optimum Reduction of Required Brake Fluid Level for Improvement of the High Speed Continuous Brake Distance

Hyundai Motor Company-Junggyu Kim, Kwang Yun Kim, Eue-sub So
Published 2019-09-15 by SAE International in United States
The high speed continuous braking distance assessment is the worst condition for thermal fades. This study was conducted to investigate the relationship between fade characteristic and friction materials & brake fluid amount for improving braking distance. So, we used the dynamometer to measure the friction coefficient, braking distance and required brake fluid amount. Through the measurements, the research was carried out as follows. First of all, we studied the influence of friction coefficient about different shapes (chamfer shape, area of the friction material, number of slots) on the same friction material. Secondly, we knew the effects of braking distance by the shape of the friction material. Through these two studies, the shape of the friction material favorable to the fade characteristics was derived. Finally, we measured the amount of required brake fluid in caliper after 10 consecutive braking cycles through Dynamometer. And then, we measured the amount of compression deformation and uneven wear of the friction material. It was found that the above two factors cause the increase the amount of required brake fluid. Through…
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Conversion Coating for Aluminum Alloys Low Electrical Resistance Coating

AMS B Finishes Processes and Fluids Committee
  • Aerospace Material Specification
  • AMS2477D
  • Current
Published 2019-07-24 by SAE International in United States
This specification covers the requirements for a low-electrical-resistance chemical conversion coating on aluminum and aluminum alloy parts.
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Identification Welding Wire, Tab Marking Method

AMS B Finishes Processes and Fluids Committee
  • Aerospace Material Specification
  • AMS2816W
  • Current
Published 2019-07-15 by SAE International in United States
This specification covers procedures for tab marking of bare welding wire to provide positive identification of cut lengths and spools.
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Model Gives Robots a Better Feel for Object Manipulation

  • Magazine Article
  • TBMG-34576
Published 2019-06-01 by Tech Briefs Media Group in United States

A new learning system improves a robot’s ability to mold materials into target shapes and make predictions about interacting with solid objects and liquids. The system, known as a learning-based particle simulator, could give industrial robots a more refined touch and may have applications in personal robotics.

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Aerospace Series - Quality Management Systems - Nonconformity Data Definition and Documentation

G-14 Americas Aerospace Quality Standards Committee (AAQSC)
  • Aerospace Standard
  • AS9131D
  • Current
Published 2019-05-31 by SAE International in United States
This standard defines the common nonconformity data definition and documentation that shall be exchanged between an internal/external supplier or sub-tier supplier, and the customer when informing about a nonconformity requiring formal decision. The requirements are applicable, partly or totally, when reporting a product nonconformity to the owner or operator, as user of the end item (e.g., engine, aircraft, spacecraft, helicopter), if specified by contract. Reporting of nonconformity data, either electronically or conventionally on paper, is subject to the terms and conditions of the contract. This also includes, where applicable, data access under export control regulations.
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Terminals, Lug: Splices, Conductor: Crimp Style, Copper, General Specification for

AE-8C2 Terminating Devices and Tooling Committee
  • Aerospace Standard
  • AS7928C
  • Current
Published 2019-05-23 by SAE International in United States
AS7928 includes insulated and uninsulated crimp-style copper lug terminals and conductor splices for stranded conductors.
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Conversion Coating for Aluminum Alloys Low Electrical Resistance Coating

AMS B Finishes Processes and Fluids Committee
  • Aerospace Material Specification
  • AMS2477C
  • Historical
Published 2019-05-10 by SAE International in United States
This specification covers the requirements for a low-electrical-resistance chemical conversion coating on aluminum and aluminum alloy parts.
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Parcel Delivery Drone

  • Magazine Article
  • TBMG-34342
Published 2019-05-01 by Tech Briefs Media Group in United States

Airbus Helicopters Marignane Cedex, France +33 (0)4 42 85 60 51