Inherently Safe Design of Home Elevator System by Passive Dynamic Control
Inherently Safe Design of Home Elevator System by Passive Dynamic Control
复制标题
家用电梯系统的被动动态控制本质安全设计
DOI：
10.1115/imece2007-42534
复制
发表时间：
2007
影响因子：
1.7
通讯作者：
N. Sugimoto
中科院分区：
文献类型：
--
作者：
Y. Minamiyama;T. Kiyota;N. Sugimoto
被动动态控制（PDC）是一种新的机械系统控制方法，其需要更少的能量但确保更高的安全性，其基于使用可变被动元件的固有安全设计。PDC将其控制过程分为四个阶段：保持阶段、接管阶段、不平衡阶段和自由阶段。在这些步骤中的每一个中，确认下一个步骤已经满足固有安全设计，然后允许执行下一个步骤。在这项研究中，作者开发了一个PDC平衡器配备了一个恒定负载的弹簧平衡器，以提供一个恒定的张力，无论电线的伸长，并进行了定位实验，使用这种PDC平衡器。本文提出了一种新的家庭电梯系统使用PDC平衡器。当使用PDC平衡器保持电梯的平衡时，电梯可以通过很小的力移动。即使发生停电或PDC平衡器的弹簧断开，只要电梯的轿厢机械地布置成在这种情况下上升，对乘客的冲击将被减轻到小于轿厢下降时的冲击。此外，该电梯被设计成防止乘客被限制在轿厢中。该系统通过增加弹簧结构和采用PDC实现了本质安全设计。该系统具有安全、节能、性价比高的特点。如果实现该系统，即使在偏远地区也可以使用家用电梯，有望促进家用电梯的普及。© 2007 ASME
The passive dynamic control (“PDC”) is a new mechanical system control method requiring less energy but ensuring higher safety, which is based on inherently safe design using variable passive elements. The PDC divides its control process into four steps: hold step, take-over step, unbalance step and free step. In each of these steps, it is confirmed that the next step has satisfied the inherently safe design and then the execution of the next step is permitted. In this study, the authors have developed a PDC balancer equipped with a constant-load spring balancer to provide a constant tension regardless of the wire elongation, and conducted positioning experiments using this PDC balancer. This paper proposes a new home elevator system using the PDC balancer. When the balance of the elevator is maintained by using the PDC balancer, the elevator can be moved by a small force. Even if power failure occurs or severance is caused to the spring of the PDC balancer, as long as the cage of the elevator is so mechanically arranged as to ascend in such case, impact on the passengers will be mitigated to be smaller than impact when it descends. Furthermore, this elevator is so designed as to prevent the passengers from being confined in the cage. The inherently safe design can be realized by multiplying the spring structure and employing the PDC for this system. This system is featured by its excellence in safety, energy saving and cost performance. If this system is realized, the home elevator can be used even in remote areas, which is expected to facilitate the spread of the home elevator.© 2007 ASME