Which of the devices listed is commonly used...

Question 1 of 270705eccefa1bacbc34ba4d471e3

Which of the devices listed is commonly used to compensate for the expansion and minor misalignments occurring between the main turbine rotor and the reduction gear?

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Question 1 of 27070

Which of the devices listed is commonly used to compensate for the expansion and minor misalignments occurring between the main turbine rotor and the reduction gear?

🔍 Key Concepts

• Thermal expansion of shafts and gears in a main propulsion train • How flexible couplings absorb misalignment and transmit torque • Typical uses of a quill shaft in reduction gear design

💭 Think About

• When the main turbine and reduction gear heat up, what happens to their length and alignment, and what kind of device is needed so torque is still smoothly transmitted? • Which of these devices is specifically intended to allow for small angular or axial misalignment between rotating components while still keeping them mechanically connected? • Think about which option is a general transmission element inside the gear train versus which is designed primarily for flexibility and misalignment compensation.

✅ Before You Answer

• Identify which choices are primarily for torque transmission only versus those that also allow for flexibility/misalignment • Consider which device is normally used between the turbine rotor and the reduction gear, not deep inside the gear tooth train • Eliminate any option that does not normally provide flexibility to accommodate thermal expansion or slight shaft misalignment