ENGINE-INDUCED AIRCRAFT CABIN RESONANCE REDUCTION SYSTEM AND METHOD

摘要

A system method of reducing engine induced aircraft cabin resonance in an aircraft includes sensing a parameter representative of current aircraft flight conditions, and sensing a parameter representative of current engine operating conditions of at least one of a first turbofan gas turbine engines or a second turbofan gas turbine engine. In a control system, the parameter representative of current aircraft flight conditions and the parameter representative of current engine operating conditions are processed to supply a variable inlet guide vane (VIGV) offset value. The VIGV offset value is applied to a VIGV reference command associated with one of the first or second turbofan gas turbine engine, to thereby cause the VIGVs of one of the first or second turbofan gas turbine engine to move to a more closed position.

主权项

1. A method of reducing engine induced aircraft cabin resonance in an aircraft, the method comprising the steps of:
sensing a parameter representative of current aircraft flight conditions; sensing a parameter representative of current engine operating conditions of at least one of a first turbofan gas turbine engines or a second turbofan gas turbine engine; and in a control system:
processing the parameter representative of current aircraft flight conditions and the parameter representative of current engine operating conditions to supply a variable inlet guide vane (VIGV) offset value; andapplying the VIGV offset value to a VIGV reference command associated with one of the first or second turbofan gas turbine engine, to thereby cause the VIGVs of one of the first or second turbofan gas turbine engine to move to a more closed position.