نتایج جستجو برای: scale cable

تعداد نتایج: 588724  

2015
Erik Hultman Mats Leijon

Cable wound electric machines are used mainly for high voltage and direct-drive applications. They can be found in areas such as wind power, hydropower, wave power and high-voltage motors. Compared to conventional winding techniques, cable winding includes fewer manufacturing steps and is therefore likely to be better suited for automated production. Automation of the cable winding production s...

2014
Hao Wang Tianyou Tao Tong Guo Jian Li Aiqun Li

The structural health monitoring system (SHMS) provides an effective tool to conduct full-scale measurements on existing bridges for essential research on bridge wind engineering. In July 2008, Typhoon Fung-Wong lashed China and hit Sutong cable-stayed bridge (SCB) in China. During typhoon period, full-scale measurements were conducted to record the wind data and the structural vibration respon...

2015
László E. Kollár Masoud Farzaneh

Ice shedding propagation on bundled conductors is simulated numerically and experimentally. A numerical model was built using a commercial finite element software ADINA, whereas experiments were carried out on a small-scale setup in laboratory. The numerical and the experimental models simulate the propagation of ice shedding from one cable in a twin bundle together with the resulting vibration...

In this paper robust PID control of fully-constrained cable driven parallel manipulators with elastic cables is studied in detail. In dynamic analysis, it is assumed that the dominant dynamics of cable can be approximated by linear axial spring. To develop the idea of control for cable robots with elastic cables, a robust PID control for cable driven robots with ideal rigid cables is firstly de...

2009
J. A. Pilgrim

In recent years the use of cable tunnels in large urban areas has become more popular, with the additional capital cost becoming increasingly acceptable in light of the growing difficulties incurred for large scale directly buried cable installations. Presently cable ratings for such circuits are calculated using the method of Electra 143. However the applicability of this method is restricted ...

Journal: :تحقیقات آب و خاک ایران 0
سید محمد علی زمردیان دانشیار دانشگاه شیراز مجتبی عقلی دانشجوی کارشناسی ارشد، دانشگاه شیراز

a large number of authors have studied to find out how to control scouring around a pier along direct stream. the objective of this research is then to study a scour pattern around such piers on curves rivers due to the fact that there may be a difference between a flow pattern on a direct line and the meander. thus, this study tries to check whether the use of cable and collar alone and in a c...

2004
Robert L. Williams Roger V. Bostelman

This paper presents a new cable-suspended robot. It is a 7-cable spatial design with a closed-form forward pose kinematics solution. Applications include automated machining, construction, and sculpting. This paper presents two new ideas. First, an independent, passive, sixstring-pot-based Cartesian metrology system was built and tested since length measurements through the active drive system ...

Journal: :international journal of advanced design and manufacturing technology 0
moharam habibnejad korayem iust a. tajik h. tourajizadeh

in this paper, a new approach to modify cable tension measuring mechanism is described; furthermore, the constructed boards which amplify load cell output are introduced. this approach has some advantages including of providing feedback for motors, evaluating the robot’s ultimate load carrying capacity, improving the motor control system and estimating the vibrating deflections of the end effec...

The load transfer mechanisms of cable bolts differ from those for normal rebar bolts. The cable bolts used in mines are basically steel strands with different constructions depending on the number of wires or elements and the way they are laid. Tendon bolts (rebar and cable) are normally evaluated for their strength and load transfer properties. The tendon strength can be evaluated by the tensi...

Journal: :international journal of electrical and electronics engineering 0
m. a. khosravi hamid d. taghirad professor and dean of faculty of electrical engineering, k.n. toosi university of technology

in this paper robust pid control of fully-constrained cable driven parallel manipulators with elastic cables is studied in detail. in dynamic analysis, it is assumed that the dominant dynamics of cable can be approximated by linear axial spring. to develop the idea of control for cable robots with elastic cables, a robust pid control for cable driven robots with ideal rigid cables is firstly de...

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