Control of Occupant-Induced Floor Motion

现代建筑材料往往导致轻质楼板系统容易受到人类运动的输入强迫作用而产生的瞬时运动。想要控制这种现象的技术必须量化强迫函数和有效的减振方法。这项研究将把运动的输入强迫函数量化为截断的傅里叶级数，其系数与人类有关身体特征。然后，使用人体工学指数进行外推，将创建适合合理结构的基于统计的人口流动趋势描述设计建议。第二阶段的研究将调查人体的特性，这些特性使其成为有效的阻尼器。实验数据将从地板上收集，使用人类作为被动或主动的第二质量阻尼器。现有的数学模拟将被用来分析解释物体的阻尼势。最后，将开发一种模拟人体特性的机械设备，通过人为增加地板运动来控制不必要的地板运动减震。这项研究将允许轻型地板系统在不受振动适用性考虑的情况下，以其真正的设计潜力运行。它还将确定基于输入强迫函数的设计分析方法，而输入强迫函数又基于符合人体工程学的总体意思是。

Modern construction materials often result in lightweight floor systems susceptible to transient motion imparted by the input forcing function of human locomotion. Technologies intended to control this phenomena must quantify the forcing function and efficient vibration damping methods. The research will quantify the input forcing function of locomotion as a truncated Fourier Series whose coefficients are related to human physical characteristics. Extrapolation using ergonomic indices will then create a statistically based description of population locomotive trends suitable for rational structural design recommendations. The second phase of research will investigate the properties of the human body which make it an efficient damper. Experimental data will be collected from floors using humans as passive or active second mass dampers. Existing mathematical simulations will be used to analytically explain the body's damping potential. Finally, a mechanical device will be developed which emulates human body properties to control unwanted floor motion through artificially increased damping. The research will permit lightweight floor systems to operate at their true design potential, unhampered by vibration serviceability considerations. It will also ascertain analytical methods of design based on input forcing functions which are in turn based on ergonomic population means.