Demonstrations of the hybrid control concept for vibration reduction on helicopters

一种独特的用于降低直升机振动和噪音的主动控制系统将在涡流塔(或离心机)测试和计算机模拟中启动。该系统由卡尔顿大学的两名申请者开发，是第一个在每个直升机叶片上同时使用流动控制和结构控制设备的控制系统，因此与其他控制系统不同。为此，该概念被命名为混合控制，其主要优点是它允许在减振方面获得优越的效率，并有望成为第一个同时降低振动和噪声的系统。混合控制概念的一个关键元素是主动俯仰连杆，这是有史以来第一个可以控制叶片结构响应的装置的工作原型。混合控制系统的独特概念以及主动俯仰链接的设计已获得专利保护，并设计为在功率输出或执行器故障的情况下具有故障保护功能。如果这项提案中概述的演示成功，它将为该产品的商业化打开大门，该产品的设想是由一家雇用约40-55人的加拿大剥离公司制造并供应给直升机制造商。

A unique active control system for reducing vibration and noise on helicopters will be demonstarted in whirl tower (or centrifugal) tests and computer simulations. The system was developed by the two applicants at Carleton University and stands out from other control systems by being the first one to employ both Flow Control and Structural Control devices on each helicopter blade. For this reason, the concept is named as Hybrid Control and its main benefits are that it allows to obtain superior effiociency in reducing vibration as well as promises to be the first system to reduce vibration and noise simulataneously. A key element of the Hybrid Control concept is the Active Pitch Link, which is the first ever working prototype of a device which can control the structural response of the blade. The unique concept of the Hybrid Control system as well as the design of the Active Pitch Link has been patent protected and designed to be Fail Safe in the case of power output or actuator failure. If the demonstrations outlined in this proposal are successful, it will open the door towards commercialization of the product, which is envisioned to be manufactured and supplied to helicopter manufacturers by a Canadian spin-off company emloying about 40-55 people.