Purpose Construction equipment is a key resource, and contractors that own a large equipment fleet take all necessary measures to maximize equipment utilization and minimize equipment failures. Although most contractors implement scheduled maintenance programs and carry out periodic inspections and repairs on their construction equipment, it is still difficult to predict the occurrence of a spe...

This paper presents our analysis of the failure behavior of large scale systems using the failure logs collected by Los Alamos National Laboratory on 22 of their computing clusters.We note that not all nodes show similar failure behavior in the systems. Our objective, therefore, was to arrive at an ordering of nodes to be incrementally (one by one) selected for duplication so as to achieve a ta...

Wireless closed-loop control is of major significance for future industrial manufacturing. However, applications pose stringent quality service requirements reliable operation. Contrary to traditional ultra-reliable low-latency communications design goals such as low packet loss rates and latency, research results in the domain networked systems (NCS) state that depending on sampling period, in...

Here, a new buck–boost converter with reliability analysis is proposed. The has utilized voltage multiplier cell at the input side to boost output voltage. It continuous current wide range of duty cycle operations. achieves unity gain 26.8% and can also operate in discontinuous conduction modes buck modes. detailed proposed using improved Markov modelling presented by considering both open circ...

The 2 out of 4-system (2oo4) is an advanced safety architecture. A 2oo4-system is 2-failure safe, this means that at least two of the four channels have to work correctly in order to trigger the safety function. In order to classify the quality of a system different parameters have to be calculated, like the PFD and MTTF. In this paper, equations are indicated for PFD for normal and common-caus...

The technological advancements in field of Computer aided design and manufacturing have led to development of conventional numeric control. The conceptual framework initially designed during the early developments still undergoes few small customized changes as per the challenges. CNC Machines are the contrast to the conventional machining operations which were initially either hand operated, l...

In practice, the performance of structure is studied based on a seismic scenario composed independent single earthquakes. But in real life, subjected to multiple earthquakes during its typical design working which will produce an evolution damage with time.The main purpose this paper quantify liquefaction-induced embankment due sequential defined life. Moreover, non-parametric survival analysis...

Original scientific paper The multiplex (MUX) control system of subsea blowout preventer (BOP) plays a vital role in providing safe working conditions for the subsea drilling activities. According to the working states and critical failure modes of the MUX control system, this paper presents its stochastic Petri nets (SPN) model, taking into account the imperfect fault detection capacity. The n...

The reliability of software is one of the most important software metrics. In the course of time, systems have become more and more complex and that is why software has become more complex, too. It is an undeniable fact that this will lead to an increasing number of software faults. Models of software reliability are used to track down software faults. The aim is to make sure that an improvemen...