Overall availability of a robot with internal safety device

被引：10
|
作者：
Vanderperre, Edmond J. [1 ]
Makhanov, Stanislav S. [2 ]
机构：
[1] Univ S Africa, Dept Decis Sci, ZA-0003 Pretoria, South Africa
[2] Thammasat Univ, Sirindhorn Int Inst Technol, Sch Informat & Comp Technol, Pathum Thani 12000, Thailand
来源：
COMPUTERS & INDUSTRIAL ENGINEERING | 2009年 / 56卷 / 01期
关键词：
Robot; Safety device; Ineffective lifetime; Effective lifetime; Availability; Integro-differential equation;
D O I：
10.1016/j.cie.2008.05.010
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
We introduce a robot-safety device system composed of a robot with internal (built-in) safety device. The system is characterized by a safety shut-down rule and by the natural feature of standby. In order to obtain the point availability of the twin-system, we introduce a stochastic process endowed with a time-dependent potential satisfying an integro-differential equation. The explicit solution procedure requires the (new) notion of ineffective lifetime - versus - effective lifetime of the robot. The analysis of the long-run availability requires the introduction of a signed measure. As an example, we display a computer-plotted graph of the point availability obtained by inversion of the corresponding Laplace-transform. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：236 / 240
页数：5
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