Browse Publications Technical Papers 2005-01-3262
2005-10-03

Improving the Reliability of EMA by using Harmonic Drive Gears 2005-01-3262

Attention in using electro-mechanical actuators (EMA) in aircraft is increasing. The long-term vision is to replace hydraulic actuation completely and to come to the all-electric aircraft. Several challenges are waiting on this path. The different failure behavior and the limited in-service knowledge are some of them. The paper describes the principle of Harmonic Drive gears and how the application of these will allow to overcome some of these problems. Special focus is made on the discussion of failures and the reason why this gear principle avoids jammed conditions and is easier to be analyzed in reliability calculations.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
X