Balancing Jet Fuel-Powered Turbine Engines

picture of a marine turbineLarge stationary jet fuel-powered turbines are the solution for many industrial applications where large amounts of rotational energy is needed in a comparatively small and compact package. As evident in commercial airline applications, the design constraints and the engineering solutions provided by jet turbine power, allow these motors to be used in a variety of relatively portable applications.

At HI-TEK Balancing, Inc, we have set the industry standard for solving vibration problems that arise in turbine engines and are implemented in new portable applications during the design and installation stages. These applications where large power density is required include cruise ships, large oil tankers, large cargo ships, and military vessels. Turbine engines must be mated to either a generator or directly to a propeller via a transmission. The shafts that are used to connect these devices are often unique to the application of the turbine. Turbines are balanced by the manufacturer, but the unique connecting shafts require balancing due to error generated by the realities of the shaft manufacturing tolerances and reassembly fit-up error.

With the assumption that the majority of vibration is caused by unbalance of the shaft, the shaft vibration is measured by reading the orbital acceleration data at the ends of the shafts. Technically speaking, four accelerometers are attached to the turbine engine, two horizontal, two vertical. Four additional accelerometers in the same orientation are attached to the receiving end, gearbox or generator, depending on the driving method of the particular ship.

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