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首页> 外文会议>American Helicopter Society International annual forum >The Bell 525 Relentless, The World's First 'Next Generation' Fly-by-Wire Commercial Helicopter
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The Bell 525 Relentless, The World's First 'Next Generation' Fly-by-Wire Commercial Helicopter

机译：贝尔525无情，世界上第一架“下一代”电传飞行商用直升机

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Since its formal launch in 2012, designers of the Bell 525 Relentless have sought feedback and utilized input from a Customer Advisory Panel (CAP) comprised of industry-leading global helicopter operators. The top initiative of this group is to adopt the features of a next generation helicopter that provides enhanced margins of flight safety. In response, the Bell 525 will be the first commercial helicopter to offer full authority fly-by-wire digital flight controls. Helicopter safety reviews have consistently found that human factors and situational awareness are the leading cause of helicopter accidents. With this history, safety clearly points to the need for careful consideration of pilot workload, especially in demanding situations such as hovering near multiple obstacles or performing in Degraded Visual Environments (DVE). Design-for-safety enhancements include Translational Rate Command / Position Hold control laws at low speed, automatic computer assisted entry into autorotation in the event of a dual engine failure, automatic OEI compensation, load alleviation provisions, and control axis decoupling. This paper describes the process of incorporating requirements for modern handling qualities design criteria into the control system design and examines the real-time testing scheduled for the 525's first flight.
机译：自2012年正式推出以来，Bell 525 Relentless的设计师一直在寻求反馈，并利用了由行业领先的全球直升机运营商组成的客户咨询小组（CAP）的投入。该小组的首要任务是采用下一代直升机的功能，以提高飞行安全性。作为回应，贝尔525将成为第一架提供完全授权的电传线控数字飞行控制的商用直升机。直升机安全审查一致发现，人为因素和态势感知是直升机事故的主要原因。有了这个历史，安全性便明确指出需要仔细考虑飞行员的工作量，尤其是在要求苛刻的情况下，例如，悬停在多个障碍物附近或在退化的视觉环境（DVE）中表演。安全性增强设计包括低速时的平移速率命令/位置保持控制法则，在双引擎故障情况下自动由计算机辅助进入自动旋转，自动OEI补偿，减轻负载规定以及控制轴去耦。本文介绍了将现代操纵质量设计标准的要求纳入控制系统设计的过程，并检查了计划在525首次飞行中进行的实时测试。

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