SBIR Phase I: Quasi- Semi-Active Seats (QSAS) for Heavy Machinery

SBIR 第一阶段：重型机械的准半主动座椅 (QSAS)

• 批准号: 1819917
• 负责人: Varun Chalasani
• 金额: $ 22.5万
• 依托单位: ACTIBIOMOTION, LLC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-06-15 至 2020-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1819917&HistoricalAwards=false
• 关键词: SBIR; Phase; Quasi; Semi; Active

The broader impact/commercial potential of this project focused on a novel seat design that reduces vehicle-based whole-body vibration and shock will 1) better protect human health while 2) addressing major transportation markets including trucking, agriculture, construction, military vehicles, and mass transit, as well as automobiles and water-/land-based recreational vehicles. The envisioned socio-economic impact is significant: Continual exposure to whole-body vibration and shocks can cause discomfort, reduction in work performance, and chronic low-back pain for vehicle operators and passengers. Low-back pain is the largest component of disability among all occupational-related injuries. Though so-called "active" seats can help reduce these vibrations/shocks, their high cost is a major barrier. The low-cost seats being pursued here could benefit millions of vehicle operators. The work will also result in a greater scientific and technological understanding of the sources/effects of and potential remedies for whole-body vibration and shock. The suspension system market is projected to grow at a CAGR of 5.11%, by value, from 2016 to 2021. The market is expected to grow from USD 52.38 Billion in 2015 to USD 67.22 Billion by 2021. The market for bus seats alone is expected to be at $10.03 Billion by the year 2022.This Small Business Innovation Research (SBIR) Phase I project is focused on the feasibility of a quasi-semi-active seat (QSAS) technology. Seating design for heavy equipment and vehicle operators has faced a trade-off between performance and cost. The most-complex 'active seats' reduce vibration but are cost-prohibitive at $3,500. Semi-active seats are simplified active seats and perform better than passive seats, but still magnify input vibration and cost several thousand dollars. Passive seats are the least expensive, but they magnify input vibration at low frequencies. Recent design/material advances and strong preliminary data set the stage for developing an innovative passive seat at a fraction of the cost of semi-active seats that will reduce input vibration at low frequencies. Phase I feasibility will be shown using sliding friction to mitigate vibration at low frequency. A QSAS prototype will be built and used to show potential in laboratory and field settings. Technical challenges will involve material selection that will show maximum vibration mitigation and dissipation, as well as integration of the cushion with a suspension system that can handle the weight of a seated person. The research will determine effective performance parameters under different magnitudes and frequencies of vibration that simulate realistic operational conditions.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该项目的更广泛的影响/商业潜力集中在一种新型的座椅设计上，该设计减少了基于车辆的全身振动和震动1）更好地保护人类健康，而2）解决包括货运，农业，建筑，军事车辆和大众运输以及汽车以及汽车和水和水/地面式造型式娱乐汽车在内的主要运输市场。 所设想的社会经济影响很大：持续暴露于全身振动和冲击会导致不适，工作绩效的降低以及慢性低下背部疼痛对车辆操作员和乘客来说。 低背痛是所有与职业相关伤害中残疾的最大组成部分。尽管所谓的“主动”座椅可以帮助减少这些振动/冲击，但它们的高成本是主要障碍。在这里追求的低成本座位可能会使数百万的车辆运营商受益。这项工作还将对全身振动和冲击的来源和潜在补救措施的来源/效果和潜在补救措施有更深入的科学和技术理解。 The suspension system market is projected to grow at a CAGR of 5.11%, by value, from 2016 to 2021. The market is expected to grow from USD 52.38 Billion in 2015 to USD 67.22 Billion by 2021. The market for bus seats alone is expected to be at $10.03 Billion by the year 2022.This Small Business Innovation Research (SBIR) Phase I project is focused on the feasibility of a准隔离座椅（QSAS）技术。 重型设备和车辆运营商的座位设计在性能和成本之间取决于权衡。最复杂的“主动座椅”降低了振动，但成本良好，为3500美元。半活性座椅是简化的主动座椅，并且比被动座椅表现更好，但仍在放大输入振动，花费了数千美元。被动座椅是最便宜的，但它们以低频放大输入振动。 最近的设计/材料进步和强大的初步数据为开发创新的被动座椅的阶段奠定了阶段，这是半活动座椅成本的一小部分，这将减少低频下的输入振动。第一阶段的可行性将使用滑动摩擦显示以减轻低频的振动。 QSA原型将被建造并用于显示实验室和现场设置中的潜力。 技术挑战将涉及材料选择，该材料将显示最大的振动缓解和耗散，以及将垫子与可以处理座位人员重量的悬架系统集成。该研究将在不同的幅度和振动频率下确定有效的性能参数，这些参数模拟了现实的操作条件。该奖项反映了NSF的法定任务，并使用基金会的知识分子和更广泛的影响评估审查标准，被认为值得通过评估。