This paper presents a method for on-line fault monitoring and diagnosis, which is implemented in the hydraulic control system in the cutter module of an industrial fish processing machine. Raw data from the pressure sensors and displacement sensors of the machine are analyzed on line, and residual values are generated using an Unscented Kalman Filter (UKF). By comparing these values against a s...

The present work is motivated by the idea that the layer deformation in anisotropic elasticity can be estimated from the theory of interfacial dislocations. In effect, this work which is an extension of a previous approach given by one of the authors determines the anisotropic displacement fields and the critical thickness due to a complex biperiodic network of MDs lying just below the free sur...

Detecting and reacting to faults (i.e., abnormal situations) are essential skills for robots to safely and autonomously perform tasks in human-populated environments. This paper presents a fault detection algorithm that statistically monitors robot motion execution. The algorithm does not model possible motion faults, but it instead uses a model of normal execution to detect anomalies. The mode...

Displacement–length data from faults, joints, veins, igneous dikes, shear deformation bands, and compaction bands define two groups. The first group, having a power-law scaling relation with a slope of n1⁄4 1 and therefore a linear dependence of maximum displacement and discontinuity length (Dmax1⁄4 gL), comprises faults and shear (non-compactional or non-dilational) deformation bands. These sh...

Bridge faults, especially in CMOS circuits, have unique characteristics which make them difficult to detect during testing. This paper presents a technique for detecting bridge faults which have an effect on the output of CMOS Domino logic circuits. The faults are modeled at the transistor leveI and .lhis technique is based on analyzing the off-set of the function during off-line testing.

Faults and damage in oil-filled power transformers has a devastating effect on the overall reliability of electrical power systems. Several factors, especially electrical and thermal stresses age the transformer and subject them to incipient faults. These faults, if left undetected will cause deterioration and eventually lead to failure of the transformer [1]. The presence of faults such as arc...

Fault modeling is a very important step in making an accurate and reliable 3D geological model. Typical existing methods demand enough fault data to be able to construct complex fault models, however, it is well known that the available fault data are generally sparse and undersampled. In this paper, we propose a workflow of fault modeling, which can integrate multi-source data to construct fau...

Early stages of normal fault growth are seldom described using field observations active faults. Here we first estimate the displacements border and intrarift faults in Zomba Graben low extension (< 10 %) Malawi Rift, then quantify micro-to macroscale damage mineralisation associated with their surface exposures. The 22 km long Mlunguzi 39 Chingale Step have zones 4–52 m wide. In contrast, zone...

The Quchan fault is located in Quchan - Shirvan area which is a part of Chenaran- Bojnourd plain in Kopeh-Dagh zone, NE Iran. The Quchan active fault with northwest – southeast trending is one of the most important strike-slip faults in the area which its activity led to the numerous historical and instrumental earthquakes. The Neo-tectonic activities of this fault are investigated by the drain...