초록 ▼

An on-board aircraft system for determining the weight and load-related characteristics of an aircraft having landing gear struts (which each have a strut cylinder, a strut piston, and a working fluid in the strut cylinder) includes an accelerometer associated with each gear strut for measuring acce

An on-board aircraft system for determining the weight and load-related characteristics of an aircraft having landing gear struts (which each have a strut cylinder, a strut piston, and a working fluid in the strut cylinder) includes an accelerometer associated with each gear strut for measuring acceleration. The system further includes a pressure-adjustment means coupled to each strut cylinder for selectively adjusting the pressure in each strut cylinder to cause each landing gear strut to extend and retract; a plurality of pressure transducers coupled to the plurality of landing gear struts for measuring a pressure in each strut cylinder; and a computer. The computer is operable to cause retracting and extending the strut, to store pressure measurements of the strut cylinder during the retraction and extension of the strut, to store acceleration measurements corresponding to each pressure measurement taken, and to calculate the weight based on the pressure measurements and the acceleration measurements. A method of determining the weight on an aircraft is disclosed that includes use of an accelerometer.

대표청구항 ▼

[ What is claimed is:] [11.] A method for determining weight on an aircraft gear strut having a strut cylinder with a working fluid and a strut piston, the method comprising the steps of: retracting and extending the strut;taking and storing strut cylinder pressure measurements during the retraction

[ What is claimed is:] [11.] A method for determining weight on an aircraft gear strut having a strut cylinder with a working fluid and a strut piston, the method comprising the steps of: retracting and extending the strut;taking and storing strut cylinder pressure measurements during the retraction (P.sub.r) and extension (P.sub.e) of the strut;taking and storing acceleration measurements (a.sub.r and a.sub.e) corresponding to each pressure measurement taken; andcalculating the weight on the strut based on the pressure measurements and the acceleration measurements.