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  • Thermal Expansion Measurements on Operating Automobile Engines
    of the crankshaft bearings and rear main seal. This development has introduced a potential problem area that must be analyzed. As engines go through heating and cooling cycles it is essential that the engine block and oil pan expand and contract at nearly the same rate. If not, stresses can be introduced
  • Needle Bearings
    Needle bearings are roller bearings with rollers that have high length-to diameter ratios. They are used in farm and construction equipment, automotive transmissions, small gasoline engines, gear pumps, small appliance and tool motors, alternators, and aircraft controls. Needle bearings are usually
  • An Integrated Approach to Engine Radiated Acoustics
    with the wetted surface is straightforward. Modal Based Forced Response The powertrain excitations are function of: Location: crank bearing, combustions, etc Engine load conditions: whether different rpm ranges, single rpm or an order set Frequency: typically from 20Hz to 3000Hz or more LMS
  • Aluminum-Alloy Bearings
    Aluminum bearing alloys have wear resistance, high load-carrying capacity, fatigue strength, thermal conductivity, and excellent corrosion resistance, and low cost. They are used extensively in connecting-rod and main bearings in internal combustion engines, hydraulic gear pumps, oil-well pumping
  • Cosworth Technology & Arup Reduce Engine Acoustic Analysis Time
    . A detailed FE model of the engine structure was created and an eigenvalue solution yielded some 750 modes in the frequency range below 3,100 Hz. The structural model was loaded with cylinder pressures and inertial forces/moments. These excitations were applied at the cylinder and main bearing
  • Ultrasonic Cleaning of Aircraft Components
    Many applications exist in the aircraft industry that can benefit from ultrasonic cleaning. Typical applications include brake parts, generator components, actuators, shuttle valves, filters, engine blades and vanes, aircraft wheels and bearings. Turbine blades and nozzle vanes from jet engines
  • 5 Key Tips for Linear Bearing Maintenance That Save Money by Avoiding Unplanned Downtime.
    light loads. The dynamic. with Thomson, Al was with the GE Aircraft Engine Group. load capacities listed in the catalog depend upon. for over 6 years working on the conceptual mechanical. appropriate lubrication intervals. For low loads or. design of jet engines. Mr. Ng earned his Bachelors of. higher
  • Linear guide system streamlines aircraft seat assembly, operation.
    are the linear rails and bearings. that allow seats to move forward and back, and armrests. raiLs on pLanes. and footrests to slide smoothly into a range of positions. Linear guide rails are an important component within. Because weight and reliability are the most important. aircraft interiors

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