Example 7: The rotor of a jet airplane engine which is supported by two bearings is shown in figure 2. The rotor assembly including compressor, turbine, and shaft has a mass of 1000 kg and a radius of gyration of 250 mm. Determine the maximum bearing force as the airplane undergoes Jiay a pull-out on circular curve whose radius is 2,000 m at a constant speed of 1,000 km/ hr and the engine rotor speed is 10,000 rpm CW as seen from bearing 1. Include the gyroscopic, centrifugal as well as the weight effects. Assume the engine have a mass center at the middle of the assembly and it is 0.1 m above the airplane base.

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Example 7: The rotor of a jet airplane engine which is supported by two bearings is shown in figure 2. The rotor
assembly including compressor, turbine, and shaft has a mass of 1000 kg and a radius of gyration of 250 mm.
Determine the maximum bearing force as the airplane undergoes Jiy a pull-out u on circular curve whose
radius is 2,000 m at a constant speed of 1,000 km/ hr and the engine rotor speed is 10,000 rpm CW as seen from
bearing 1. Include the gyroscopic, centrifugal as well as the weight effects. Assume the engine have a mass center
at the middle of the assembly and it is 0.1 m above the airplane base.
Turbine
Compressor
Bearing in
Bearing
Shaft 2
2.134 m
Transcribed Image Text:Example 7: The rotor of a jet airplane engine which is supported by two bearings is shown in figure 2. The rotor assembly including compressor, turbine, and shaft has a mass of 1000 kg and a radius of gyration of 250 mm. Determine the maximum bearing force as the airplane undergoes Jiy a pull-out u on circular curve whose radius is 2,000 m at a constant speed of 1,000 km/ hr and the engine rotor speed is 10,000 rpm CW as seen from bearing 1. Include the gyroscopic, centrifugal as well as the weight effects. Assume the engine have a mass center at the middle of the assembly and it is 0.1 m above the airplane base. Turbine Compressor Bearing in Bearing Shaft 2 2.134 m
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