shrill
发表于 2025-3-26 21:59:57
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Feedback
发表于 2025-3-27 02:48:04
Stability Problems in Rotor Systems,ed by balancing. In such cases other solutions must be sought. This chapter discusses the following three problems that may be encountered: .For simplicity, a single-degree-of-freedom model is used in the following discussion.
affect
发表于 2025-3-27 07:55:06
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micturition
发表于 2025-3-27 12:46:05
Rotor System Evaluation Using Open-Loop Characteristics, as a control system as shown in Fig. 8.1, of which the open-loop characteristics are related to the vibration characteristics: the gain cross-over frequency is an estimate of the natural frequency, and the phase margin is an indicator for the damping ratio. Details of estimation are described below.
增减字母法
发表于 2025-3-27 15:04:55
Rotor Vibration Analysis Program: MyROT, for formulation and presents outputs of typical rotor dynamic calculations in order to show how this program is convenient in analyzing rotordynamics. A trial version of the package is available at .. An input data manual and other documents related to the package may also be downloaded from the site.
推测
发表于 2025-3-27 18:09:17
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桉树
发表于 2025-3-27 22:37:28
Introduction of Rotordynamics, volume 1). It also provides guidance in undertaking diagnosis and implementing effective countermeasures against various vibration problems in the field (in volume 2). Consequently, volume 1 is intended mainly for beginners and students, while volume 2 is mainly for design engineers and practitione
抑制
发表于 2025-3-28 05:56:43
Basics for a Single-Degree-of-Freedom Rotor,alue (.-factor)..Basic properties featuring in a vibrating system, which are obtained from the free vibration waveform, are:.Using these parameters, the resonance caused by forced excitation can be predicted with.Since separation of resonance or reduction of the .-value are fundamental requirements
Dorsal-Kyphosis
发表于 2025-3-28 08:15:21
Modal Analysis of Multi-Degree-of-Freedom Systems,ould, however, be analyzed as a multi-degree-of-freedom (multi-dof) system where multiple masses are arranged according to the shape of the rotor shafting. The equation of motion for such a system is represented using matrices. Eigenvalue analysis of the multi-dof system gives the natural frequencie
conceal
发表于 2025-3-28 11:14:36
Mode Synthesis and Quasi-modal Method,r have the representation of the original physical coordinates. This chapter discusses methods to reduce the order of the system while preserving the physical coordinates as far as possible. One such method is based on Guyan reduction, in which only the “relatively important” nodes are chosen out of