Analysis of Dynamic Behavior of the Train, Ballast Track, and Subgrade Coupling System

2016 ◽  
pp. 323-340
Author(s):  
Xiaoyan Lei
Keyword(s):  
Dynamic Behavior ◽  
Coupling System ◽  
Ballast Track

Simulation on the Dynamic Behavior of the Propulsion System Subjected by Hull Deformation for Large Vessels

2015 ◽  
Author(s):  
Zhe Tian ◽  
Xinping Yan ◽  
Cong Zhang ◽  
Weizhong Tan
Keyword(s):  
Dynamic Behavior ◽  
Large Scale ◽  
Propulsion System ◽  
Normal Operation ◽  
Sea Waves ◽  
Ship Propulsion ◽  
Coupling System ◽  
Large Ship ◽  
Important Position ◽  
Large Vessels

This paper aims to investigate the dynamic behavior of the large ship propulsion system subjected by hull deformation. Evident tendency of development of large scale ships was shown that the interaction between the propulsion shaft and ship hull becomes much severer than before. The excited forces caused by severe sea waves have considerable effects on the hull deformation which could have further impact on the shaft propulsion system. On the contrary, the operation quality of ships and the durability of machines are threatened by the malfunctions of shaft propulsion system. As a result the reliability of the vessels has been put in an important position by the companies and the governments all over the world. For scientists, investigating the dynamic behavior of the propulsion system subjected by the hull deformation is a meaningful research to avoid malfunction of machine in navigation. Numerical analysis is now an effective method to analyze some key components on large vessels. Taking the 8530TEU container as an example, a numerical model of the large ship propulsion-hull coupling system is presented in this paper to analyze the dynamic behavior of the ship propulsion system subjected by hull deformation. The hull deformations are obtained under different sea conditions as the exciting forces which are used on the coupling system. Then the dynamical responds of the ship shaft are obtained. Based on the results, suggestions are proposed to ensure the normal operation of the propulsion system in different sea conditions.

Research on dynamic behavior of multistage gears-bearings and box coupling system

Measurement ◽  
2020 ◽  
Vol 150 ◽  
pp. 107096 ◽  
Author(s):  
Wenjia Lu ◽  
Yimin Zhang ◽  
Hongchuan Cheng ◽  
Yang Zhou ◽  
Hangyuan Lv
Keyword(s):  
Dynamic Behavior ◽  
Coupling System

Ultrastructural Localization of Acid Mucosubstance in Skeletal Muscle

1967 ◽  
Vol 25 ◽  
pp. 52-53 ◽  
Author(s):  
William J. Dougherty ◽  
Samuel S. Spicer
Keyword(s):  
Striated Muscle ◽  
Divalent Cations ◽  
Ultrastructural Localization ◽  
Major Elements ◽  
Frozen Sections ◽  
Thorium Dioxide ◽  
Iron Solution ◽  
Coupling System ◽  
Psoas Muscles ◽  
Formalin Fixed

In recent years, considerable attention has focused on the morphological nature of the excitation-contraction coupling system of striated muscle. Since the study of Porter and Palade, it has become evident that the sarcoplastic reticulum (SR) and transverse tubules constitute the major elements of this system. The problem still exists, however, of determining the mechamisms by which the signal to interdigitate is presented to the thick and thin myofilaments. This problem appears to center on the movement of Ca++ions between myofilaments and SR. Recently, Philpott and Goldstein reported acid mucosubstance associated with the SR of fish branchial muscle using the colloidal thorium dioxide technique, and suggested that this material may serve to bind or release divalent cations such as Ca++. In the present study, Hale's iron solution adapted to electron microscopy was applied to formalin-fixed myofibrils isolated from glycerol-extracted rabbit psoas muscles and to frozen sections of formalin-fixed rat psoas muscles.

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