Research on the Test of Transmission Line Galloping
نویسندگان
چکیده
منابع مشابه
Finite Element Modelling of Transmission Line Galloping
A computationally efficient, finite element idealization is presented to analyse galloping, which is characterized by large amplitude vibrations of iced, multi-span, electrical transmission lines. A three-node, isoparametric cable element having three translational and a torsional degree-of-freedom at each node is developed to model a conductor. Support insulator strings and remote conductor sp...
متن کاملTransmission Line Conductor Galloping Analysis using FEM
To find a mathematical standard of the galloping mechanism, and it is required to compare the existing mathematical standards on the conductor galloping. In this paper, using the Hamilton principle the continuum cable standard for transmission lines was proposed. Discrete standards of one degree of freedom, two degree of freedom, and three degree of freedom were obtained from the Garlekin funct...
متن کاملPerturbation-based Finite Element Analyses of Transmission Line Galloping
Efficient perturbation schemes are developed to compute the large amplitude, low frequency, galloping vibrations of a multi-span, overhead transmission line. Systematic procedures are formulated to assess the stability of a conductor’s wind and ice loaded static profile by employing a multiple-degree-of-freedom finite element model. The use of the computationally most demanding part of the fini...
متن کاملthe washback effect of iranian schoolleaving test of english on students learning
هدف از ای پایان نامه بررسی تا ثیر ازمون نهایی زبان انگلیسی سال سوم دبیرستان برروی یادگیری دانش اموزان ایرانی است. هدف اشلی این مطالعه بررسی خود این ازمون و تا ثیر ان برروی یادگیری دانش اموزان است. برای رسیدن به این هدف شیوه های تحقیقاتی مختلفی برای جمع اوری و تحلیل داده ها به کار برده شده است. ابزارهای اصلی این تحقیق شامل مصاحبه با دانش اموزان دختر سال سوم (10 نفر) و همچنین مشاهده ی 6 کلاس زبان...
ذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IOP Conference Series: Earth and Environmental Science
سال: 2018
ISSN: 1755-1307,1755-1315
DOI: 10.1088/1755-1315/128/1/012123