Today, most rotary-wing aircraft use massive and expensive swashplate-type control systems to simultaneously change pitch on all rotor blades, and also vary each rotor blade's pitch individually depending on its relative position in orbit.
This patent-pending design provides collective-cyclic control without using a conventional swashplate. Advantages include a more compact and lightweight mechanism, with an overall increase in aircraft payload, fuel economy, and reliability.
When the control shaft is displaced vertically within the hollow-drive shaft, rotor-blade pitch changes collectively, increasing or decreasing lift. Displacing the control shaft angularly, relative to the spinning shaft, skews the rotational plane of the control hub relative to the rotor axis. This changes rotor-blade pitch relative to its position in orbit, providing cyclic control.
David Rehm, Rehm Engineering (P), N70 W5334 Bridge Rd., Cedarburg, WI 53012; (414) 376-9053.
Truchard will be presented the award at the 2014 Golden Mousetrap Awards ceremony during the co-located events Pacific Design & Manufacturing, MD&M West, WestPack, PLASTEC West, Electronics West, ATX West, and AeroCon.
Robots that walk have come a long way from simple barebones walking machines or pairs of legs without an upper body and head. Much of the research these days focuses on making more humanoid robots. But they are not all created equal.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.