This study proposes a methodology to analyze the nonlinear vibration characteristics of rotor systems with multiple localized nonlinearities adopting Finite Element Method (FEM), free interface Component Mode Synthesis (CMS) method, and modified Incremental Harmonic Balance (IHB) method. The system is supported by squeeze film dampers (SFDs) on both sides, at nodes SFD arrangement, strong local...

In this paper, the dynamic stability analysis of a simply supported beam carrying a sequence of moving masses is investigated. Many applications such as motion of vehicles or trains on bridges, cranes transporting loads along their span, fluid transfer pipe systems and the barrel of different weapons can be represented as a flexible beam carrying moving masses. The periodical traverse of masses...

In rotors supported on a squeeze-film damper (SFD) with static eccentricity, subharmonic and quasi-periodic vibrations are generated by rotor unbalance. this paper, in Jeffcott an SFD analyzed using the modified incremental harmonic balance (IHB) method. Oil film forces calculated π theory short bearing approximation. These first time domain then transformed into frequency Fourier transformatio...

The viral levels and immune responses of Italian honey bees (IHB), Russian honey bees (RHB) and an outcross of Varroa Sensitive Hygienic bees (POL) deliberately infested with one or two foundress Varroa were compared. We found that the Deformed wing virus (DWV) level in IHB inoculated with one or two foundress Varroa increased to about 10(3) or 10(5) fold the levels of their uninfested brood. I...

Gastric cancer is a great part of the cancer occurrence and the mortality from cancer in Korea, and the early detection of gastric cancer is very important in the treatment and convalescence. This paper, for the early detection of gastric cancer, proposes the analysis system of an endoscopic image of the stomach, which detects abnormal regions by using the change of color in the image and by pr...

Objective: We aimed to investigate the effect of phototherapy on plasma alpha-melanocyte-stimulating hormone (α-MSH) levels newborns with indirect hyperbilirubinemia (IHB) for first time. Materials and Methods: A total 45 cases, who were hospitalized in neonatal intensive care units between July 1, 2019, September 30, received phototherapy, retrospectively included study. Plasma α-MSH bilirubin...

Abstract Quasi-periodic (QP) solutions of a damped nonlinear QP Mathieu equation with cubic nonlinearity are investigated by using the incremental harmonic balance (IHB) method two time scales. The contains incommensurate excitation frequencies, one is small frequency while other nearly equals twice linear natural frequency. It found that Fourier spectra consist uniformly spaced sidebands due t...

Improved resource efficiency, in industry and throughout the product life cycle, is a challenge potentially, integrated production platforms can act as support. The aim of this study to explore current state technical platform two industrialized housebuilding (IHB) companies from mixed architecture perspective. part collaboration also involving three manufacturing one IT provider. research cros...

Component-Based Software Engineering has been introduced as a technique for the development of complex systems. Software complexity can also be reduced by partitioning the system behavior into different modes. Such a multi-mode system is able to change its behavior at runtime by switching between different operational modes. When a multimode system is developed by reusable software components, ...

Measuring the performance of construction site processes is an essential for continuous improvement in building production efficiency. However, little known about how this done by industrialized housebuilding (IHB) companies. The purpose paper was to extend body knowledge IHB on-site measurement and management (PMM), thereby identifying reference practices potential areas order prepare field fu...