Engineering computation paper pdf

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Please note that many of the page functionalities won’t work as expected without javascript enabled. Abstract This paper describes a methodology, developed by the authors, for condition monitoring and diagnostics of several critical components in the large-scale applications with machines. This paper describes a methodology, developed by the authors, for condition monitoring and diagnostics of several critical components in the large-scale applications with machines. For industry, the main target of condition monitoring is to prevent the machine stopping suddenly and thus avoid economic losses due to lack of production. Abstract A knurled interference fit is a machine part connection made by a plastic joining, which includes the advantages of commonly-used shaft-hub-connections.

A knurled interference fit is a machine part connection made by a plastic joining, which includes the advantages of commonly-used shaft-hub-connections. The combination of the friction and form fit, which are responsible for torque transmission, results in a higher power density than conventional connections. In this paper, parameter gaps are bridged with the aim of enhance the design calculation of the knurled interference fit. Abstract Annular polishing technology is an important optical machining method for achieving a high-precision mirror surface on silicon carbide. However, the inevitable over-polishing of the specimen edge in annular polishing deteriorates achieved surface quality. Annular polishing technology is an important optical machining method for achieving a high-precision mirror surface on silicon carbide. Abstract In face milling, the roughness of the machined surface varies due to the movement of the cutting edge.

In face milling, the roughness of the machined surface varies due to the movement of the cutting edge. In this paper, the effect of increasing feed per tooth on the topography of the surface is studied in fly-cutting and in multi-point face milling. The study takes into account the axial run-out of the inserts. The in-depth analysis of cutting procedure is a topic of particular interest in manufacturing efficiency because in large-scale production the effective use of production capacities and the revenue-increasing capacity of production are key conditions of competitiveness. That is why the analysis of time and material removal rate, which are in close relation to production, are important in planning a machining procedure. Abstract The goal of this investigation is to construct a computational procedure for identifying the modal parameters of linear mechanical systems.

The goal of this investigation is to construct a computational procedure for identifying the modal parameters of linear mechanical systems. This method represents an effective and efficient system identification numerical procedure based on the time domain. The kinematic and laser-optical schemes are given. The main cooling circuits are described.

Abstract The design and manufacturing of medical implants constitutes an active and highly important field of research, both from a medical and an engineering point of view. The design and manufacturing of medical implants constitutes an active and highly important field of research, both from a medical and an engineering point of view. From an engineering aspect, the machining of implants is undoubtedly challenging due to the complex shape of the implants and the associated restrictive geometrical and dimensional requirements. Abstract In the case of double row tapered roller bearings, the windows found in bearing cages could be obtained using various machining methods. Some such machining methods are based on the cold forming process. In the case of double row tapered roller bearings, the windows found in bearing cages could be obtained using various machining methods.

There are many factors that are able to affect the machining accuracy of the windows that exist in bearing cages. On the dimensional precision of windows, the clearance between punches and die, the work stroke length, and the workpiece thickness could exert influence. Abstract In this paper, we analyze the behavior of a single pad system in the presence of dry friction. The goal is to investigate the path that leads a stable mechanical system to unstable behavior.

In this paper, we analyze the behavior of a single pad system in the presence of dry friction. In doing so, we studied the behavior of a discrete three DOF model, a continuous model and a finite element model of the pad. The numerical results are consistent with the experimental investigation conducted on a brake disk for railway application. The implementation of this scheme is based on multi-agent matching conditions.

The practical advantage of the proposed MRAC is the possibility of handling the case of the unknown dynamics of the agents only by using the output and the control input of its neighbors. Abstract This contribution deals with the numerical and experimental characterization of the structural behavior of a railroad switch machine. This contribution deals with the numerical and experimental characterization of the structural behavior of a railroad switch machine. Railroad switch machines must meet a number of safety-related conditions such as, for instance, exhibiting the appropriate resistance against any undesired movements of the points due to the extreme forces exerted by a passing train.