Studies on human responses to vibration and vehicle system dynamics

人体对振动和车辆系统动力学反应的研究

• 批准号: 6317-2009
• 负责人: Rakheja, Subhash
• 金额: $ 3.42万
• 依托单位: Concordia University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=520904
• 关键词: Studies; human; responses; vibration; vehicle

The primary goal is to conduct systematic analytical and experimental investigations in: (i) human responses to occupational vibration exposure and to seek effective interventions through vibration control; and (ii) vehicle systems dynamics for enhancement of safety dynamics limit and vibration comfort. The motivations for the first subject stem from the fact that occupational exposure to segmental and whole-body mechanical vibration has been associated with an array of health and safety risks. For example, the occupational exposure of operators to hand-held power tools vibration has been related to various disorders in vascular, sensorineural and musculoskeletal structures of the hand-arm system, while that to whole-body vibration environment of work vehicles has been related to disorders of the spine and supporting structure, discomfort, fatigue and loss of working efficiency. The latter research focus is concerned with safety dynamic limits of partly-filled tank trucks, advanced vehicle suspension concepts and vehicle vibration control. The long-term goal of the proposed research is to develop effective methods for assessing risks to vibration exposure, effective vibration control mechanisms, and build knowledge on the role of various operating factors. The proposed research program will focus on a number of specific studies in order to achieve the goals, namely: (i) characterization and modelling of biodynamic responses of the hand-arm system to multi-axes tools vibration ; (ii) analyses of distributed biodynamic responses in terms of vibration energy transfer to various substructures for deriving frequency-weighting; (iii) biodynamic response characterization of seated human body to whole-body vibration along vertical and horizontal axes; (iv) analyses of design concepts in antislosh devices for enhancement of directional performance of partly-filled tank trucks; (vi) analyses of semi-active and advanced pasive suspension concepts. The research works are also expected to contribute to the ongoing standradization efforts towards building guidelines and methods for assessing the helath and safety risks imposed by occupational shock and vibration exposures.

主要目标是在以下方面进行系统的分析和实验研究：（i）人类对职业振动暴露的反应，并通过振动控制寻求有效的干预措施； (ii) 车辆系统动力学，用于增强安全动力学极限和振动舒适度。第一个主题的动机源于这样一个事实：职业暴露于节段和全身机械振动与一系列健康和安全风险相关。例如，操作人员接触手持式电动工具振动的职业暴露与手臂系统的血管、感觉神经和肌肉骨骼结构的各种紊乱有关，而工作车辆的全身振动环境则与脊柱和支撑结构紊乱、不适、疲劳和工作效率下降。后者的研究重点涉及部分填充油罐车的安全动态极限、先进的车辆悬架概念和车辆振动控制。 该研究的长期目标是开发评估振动暴露风险的有效方法、有效的振动控制机制，并建立有关各种操作因素作用的知识。拟议的研究计划将侧重于一些具体研究，以实现以下目标，即：（i）手臂系统对多轴工具振动的生物动力学响应的表征和建模； (ii) 分析振动能量传递到各种子结构的分布式生物动力学响应，以得出频率计权； (iii) 坐着的人体对沿垂直和水平轴的全身振动的生物动力学响应特征； (iv) 分析防晃动装置的设计概念，以增强部分填充的油罐车的方向性能； (vi) 半主动和先进被动悬架概念的分析。研究工作预计还将为正在进行的标准化工作做出贡献，以制定评估职业冲击和振动暴露所造成的健康和安全风险的指南和方法。