Static and Dynamic Analysis of Hydraulic Copying System Using Throttling Valve

1979 ◽  
Vol 101 (3) ◽  
pp. 295-303
Author(s):  
S. Kato ◽  
K. Yamaguchi ◽  
E. Marui

The effect of dimension parameters of hydraulic copying control system using throttling valve on the copying accuracy is investigated from two points of view for good design of the system. One is the static characteristic in steady copying operation, and the other is the dynamic characteristics in machining a square shoulder and tapering. Some remarks which serve the design of the hydraulic copying system are clarified. The approximate equations, which are the functions of dimension parameters especially in dynamic operation, are proposed to estimate the dynamic characteristics of the copying system and to simplify the design of the system.

2013 ◽  
Vol 288 ◽  
pp. 3-7 ◽  
Author(s):  
Zong Sheng Sai ◽  
Gui Fei Wang ◽  
Ming Cong

Landslide Body, which is a combination part between Knife Tower and Saddle, plays a significant role in the working performance of the NC (numerical control) Lathe. So it is essential to optimize Landslide Body’s structure to improve static and dynamic characteristics. At first, the structure of NC Lathe is introduced. And then, static and dynamic analysis of Landslide Body is carried out before optimization. At the last, optimization process which consists of topology and size optimization is carried out. Based on the optimization results, a new structure of the Landslide Body is generated. It is proved that both static and dynamic characteristics are improved to some extent.


2011 ◽  
Vol 109 ◽  
pp. 199-203
Author(s):  
Wei Wei Zhang

To investigate the active magnetic bearing-rotor system which is influenced by the base motion, coupled dynamic model is developed in this paper. The effects of base motion, electrical differential equations of control system and the mounting of sensors at different positions on the dynamic characteristics of the magnetic bearing-rotor system were discussed. The feasibility of the dynamic model is illustrated. This dynamic model can be used for the coupled electromechanical dynamics analysis of rotor system equipped with magnetic bearings.


2016 ◽  
Vol 837 ◽  
pp. 226-229
Author(s):  
David Meri ◽  
Olga Ivankova

The subject of this article is static and dynamic analysis of a tall residential building. The static part is focused on the analysis of the structure loaded by horizontal forces acting due to the effect of wind and by vertical forces of the structure`s own weight and other vertical loads. Dynamic analysis represents the behavior of the structure during seismic event and dynamic characteristics of the structure.


1995 ◽  
Vol 31 (8) ◽  
pp. 301-309 ◽  
Author(s):  
Govert D. Geldof

In integrated water management, the issues are often complex by nature, they are capable of subjective interpretation, are difficult to express in standards and exhibit many uncertainties. For such issues, an equilibrium approach is not appropriate. A non-equilibrium approach has to be applied. This implies that the processes to which the integrated issue pertains, are regarded as “alive”’. Instead of applying a control system as the model for tackling the issue, a network is used as the model. In this network, several “agents”’ are involved in the modification, revision and rearrangement of structures. It is therefore an on-going renewal process (perpetual novelty). In the planning process for the development of a groundwater policy for the municipality of Amsterdam, a non-equilibrium approach was adopted. In order to do justice to the integrated character of groundwater management, an approach was taken, containing the following features: (1) working from global to detailed, (2) taking account of the history of the system, (3) giving attention to communication, (4) building flexibility into the establishing of standards, and (5) combining reason and emotions. A middle course was sought, between static, rigid but reliable on the one hand; dynamic, flexible but vague on the other hand.


Author(s):  
Kate Kirkpatrick

Chapter 9 offers two concluding ‘provocations’: one on wretchedness without God, the other on wretchedness with God. The first brings Sartre into dialogue with Marilyn McCord Adams’s work ‘God because of Evil’, arguing that Sartre’s account lends credence to her view that optimism is not warranted if one takes a robust realist approach to evil. Read as a phenomenologist of fallenness, Sartre may serve the apologetic purpose of making options ‘live’, in William James’s language; or, to use the phrase of Stephen Mulhall, to ‘hold open the possibility of taking religious points of view seriously’. The second provocation—on the question of wretchedness with God—suggests that Sartre can be read ‘for edification’ to help us see our failures in love. The book concludes that reading Sartre in this light can help redress ‘damaging cultural amnesia’ about religious commitment, offering an account of sin that cultivates humility, love, and mercy.


Author(s):  
S. K. Singh ◽  
A. Banerjee ◽  
R. K. Varma ◽  
S. Adhikari ◽  
S. Das

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