Results 81 to 90 of about 4,896 (145)

Research on Shape-Performance Integrated Monitoring Technology for Planetary Gearboxes Based on the Integration of Artificial Intelligence, Finite Element Analysis, and Multibody Dynamics Simulation. [PDF]

Sensors (Basel)
Cui Y, An B, Wu Z, Shang Z, Zhang X.
europepmc   +1 more source

Rotorcraft Health Management Issues and Challenges [PDF]

This paper presents an overview of health management issues and challenges that are specific to rotorcraft. Rotorcraft form a unique subset of air vehicles in that their propulsion system is used not only for propulsion, but also serves as the primary ...
Augustin, Michael, Decker, Harry J., Dempsey, Paula J., Ephraim, Piet, Grabil, Paul, Huff, Edward M., Safa-Bakhsh, Robab, Zakrajsek, James J.   +7 more
core   +1 more source

Performance analysis and optimization design of variant CR-CR 9-speed automatic transmission. [PDF]

Sci Rep
Nie L, Meng Y, Ting KL.
europepmc   +1 more source

Intelligent Monitoring System Based on Noise-Assisted Multivariate Empirical Mode Decomposition Feature Extraction and Neural Networks. [PDF]

Comput Intell Neurosci, 2022
Zhao LF, Siahpour S, Haeri Yazdi MR, Ayati M, Zhao TY.   +4 more
europepmc   +1 more source

Efficiency study comparing two helicopter planetary reduction stages [PDF]

A study was conducted to compare the efficiency of two helicopter transmission planetary reduction stages. Experimental measurements and analytical predictions were made. The analysis predicted and experiments verified that one planetary stage was a more
Handschuh, Robert F., Krantz, Timothy L.
core   +1 more source

Dynamic coupling effects of geometric eccentricity on multi-stage gear transmission via stiffness modulation and error excitation. [PDF]

Sci Rep
Lu W, Liang G, Du Z, Huang W, Zhao X.
europepmc   +1 more source

Development of a full-scale transmission testing procedure to evaluate advanced lubricants [PDF]

Experimental tests were performed on the OH-58A helicopter main rotor transmission in the NASA Lewis 500-hp Helicopter Transmission Test Stand. The testing was part of a joint Navy/NASA/Army lubrication program.
Decker, Harry J., Lewicki, David G., Shimski, John T.   +2 more
core   +1 more source

Spectral Correlation Demodulation Analysis for Fault Diagnosis of Planetary Gearboxes. [PDF]

Sensors (Basel)
Duan X, Lin R, Feng Z.
europepmc   +1 more source

A modular, adaptable, and accessible implant kit for chronic electrophysiological recordings in rats. [PDF]

Cell Rep Methods
Ibáñez Alcalá RJ, Macias AY, Heaton CN, Sosa Jurado R, Salcido AA, Reyes NF, Batson SA, Davila LD, Beck DW, Rakocevic LI, Giri A, Negishi K, Drammis SM, Goosens KA, Moschak TM, Friedman A.   +15 more
europepmc   +1 more source

Fault Diagnosis Method of Planetary Gearboxes Based on Multi-Scale Wavelet Packet Energy Entropy and Extreme Learning Machine. [PDF]

Entropy (Basel)
Meng R, Zhang J, Chen M, Chen L.
europepmc   +1 more source