Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Timo Manninen Name of the doctoral dissertation Fault Simulator and Detection for a Process Control Valve Publisher School of Engineering Unit Department of Engineering Design and Production Series Aalto University publication series DOCTORAL DISSERTATIONS 146/2012 Field of research Machine technology Manuscript submitted 12 J...

The Common Law: Vicarious Liability and the Development of Primary Liability UNLESS THE TERMS OF THE STATUTE INVOLVED SPECIFICALLY PROVIDE TO the contrary, the criminal responsibility of a company or corporation, as distinct from its officers or employees, falls to be determined by common law principles. Under original common law, a company could not be convicted for any criminal offence. The c...

The fault tolerance proprieties of multiphase induction machines make them candidate technologies for future electrified transport systems. Indeed, the use drives is primarily recommended their redundancy, which allows to handle increasing power demands as well provide fault-tolerant operation. One most common failures in polyphase open-phase (OPF). Under this degraded mode, machine performance...

A unified diagnosability evaluation framework for complex systems is presented. In this framework, four elements are used to define the diagnosability evaluation problem: fault space, indication space, fault-indication relation, and metrics. In different stages of product life cycle, the information source for diagnosability analysis may be different. But the evaluation procedure, information i...

The complexity of diagnosis tasks in large-scale, heterogeneous dynamic systems has turned the attention in this area toward model-based methods. Most model-based diagnostic systems try to nd a set of failed components that can explain observed discrepancies in system behavior consistently with constraints represented by the models. Observations are usually sensor-based and discrepancies are de...

With the widely use of traveling wave fault location equipment (TWFLE) in power grid, network-based traveling wave fault location (NBTWFL) method has been proposed. To ensure the effectiveness and economy of NBTWFL method, based on the principle of characteristic nonsingular set, an optimal placement algorithm of TWFLE is proposed in this paper. The corresponding NBTWFL method based on maximum ...

The realization, two decades ago, that quantum mechanics can be a powerful resource to speed up important computational tasks [1] led to intense research efforts to find adequate physical systems for quantum computation. One of the hurdles to a viable technology is the requirement to prepare, manipulate, and measure quantum bits (qubits) with near perfect accuracy: Imperfect control leads to er...

In order to implement online real-time non-destructive detection of turbine fluid distribution and the internal operation of the rotating machinery, we designed a high-speed data acquisition system based on PCI7300A and a high speed microcontroller—UBICOM. It is also for a further goal of carrying on graphical fault diagnosis and fault-tolerant control. This paper describes the system structure...

This article proposes a data-driven passive fault-tolerant tracking controller for single-input single-output (SISO) discrete-time linear systems with slowly-varying unknown parameters in the presence of actuator faults. Initially, parameterized is considered. Using internal model principle, structure determined such that passive-fault-tolerance and objectives are achieved. The obtained fixed-s...

In this paper, bear fault is automatically diagnosed by using pattern recognition. To improve the resolution of lower frequency part, we introduce scale factors to discrete wavelet composition (DWT). The modified DWT combined with high order cumulates are used for vibration signal feature extraction. Besides we use principle component analysis to reduce dimension of the feature data. This featu...