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  • New Test Facility Mimics Rail Car "Humping "
    quot;Humping, " in railroad jargon, means to couple railroad cars together by slamming them into one another at low speed. A 14-wheel rail test car (left) slams into a special barrier at speeds to 15 mph. The system from Control Power-Reliance, Troy, Mich., emulates the humping action of railroad
  • Leland Teschler s Editorial: Taken for a Ride: Pros and Cons of High-Speed Rail
    Leland Teschler's Editorial: Taken for a ride One of the most active topics on the Machine Design forums has been the pros and cons of rail lines. Now that gas prices have begun to creep up again, it might be a good time to revisit the idea. It is all the more interesting in light of the Obama
  • How to choose a linear rail and carriage for linear motion: Linear bearings give new meaning to riding the rails
    Linear rails come in basically two types, round and square. The criteria for choosing one over the other is no different. than choosing any other machine component; spec out the. design, defi ne the system's objectives, and work from past. successes and mistakes.
  • 900 MHz Wireless SCADA Network Communicates over Several Miles of Infrastructure
    NYC Transit operates 820 miles of track, making it one of the largest rail transit systems in the world. Millions of people ride the subway every day. In fact, in September 2014, the agency recorded five days with more than 6 million riders, breaking the previous. single-day ridership record five
  • Letters - 06/05/08
    to a rail terminus and back. This would most likely be relatively slow driving over fairly short distances. The PPM would also have the electrical and mechanical connections to the rail system. So you drive to the terminus where your PPM hooks up to the rail. Then the rail controller takes over
  • Military Develops Electric Slingshot
    The Navy's goal of replacing gunpowder with electricity got one step closer when it successfully test-fired its latest rail gun. Engineers at the Naval Warfare Center in Dahlgren, Va., recently fired their 10.64-MJ rail gun, launching an aluminum projectile out of the muzzle at 2,530 m/sec. It 's
  • Remote Communication with a Train via GPS
    CAS DataLoggers recently supplied the datalogging solution for a major sugar cane grower using a wireless radio link to communicate with a sugar train running on an extensive rail network around the plant. Over time the customer had experienced breakdowns in their communications links which led
  • Long Range Ethernet for a Train Station
    Connection Technologies (Wellington,NZ) was approached by a company working with a suburban rail provider to resolve issues with the Ethernet data feeds to their Passenger Information Devices (PIDs) in a large rail station. Cat 6 data cable infrastructure had been laid, but the connections were
  • Lords of the Ring
    Sometimes the size of the piece of metal being machined presents equally large challenges. Ladish Forging, a firm with over a century of experience forging big parts for demanding applications, had to do some serious planning when it took on the task of ring rolling and forging a 21.5-ft diameter

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