نتایج جستجو برای: dynamic structure

تعداد نتایج: 1916896  

ژورنال: مواد پرانرژی 2019

Earthquake and explosion are destructive dynamic forces. These forces can cause severe damage to the structure due to the time-dependent nature of the impact. One of the most important parameters for checking the stability of structures is the study of their buckling modes. The stability check has a direct relationship with the critical load of the columns. In this paper, the effects of simulta...

Seyed Amirodin Sadrnejad,

A finite element solution based on equevalent elements is proposed for the static and dynamic analysis of tallhigh tensioned cable antennas. To reduce high number of degrees of freedom in space frame body of a structure, a simple equivalent beam element is defined for each simulative substructure. This numerical procedure is applicable to analyze complex three dimensional assemblies of substruc...

ژورنال: کیمیای هنر 2023

Dramaturgy, as a creative and critical act dependent on the theoretical and practical knowledge of theater, consists of two parts with Greek roots: Drama (action) and Ourgia (work and operation). Ourgia literally means to practice, act, and in other words process a raw material. Eugenio Barba divides Dramaturgy in to three parts: Actor Dramaturgy, Director Dramaturgy and Audience Dramaturgy. Th...

H. Shakib and M. SadrNeshin,

In this study, the effective parameters on the inelastic response of asymmetric buildings is evaluated for an ensemble of real Iranian earthquake records by considering soil-structure interaction. Then, the design eccentricity obtained from the inelastic dynamic soil-structure analysis is compared with the design eccentricity of seisimic codes of Iran, ATC-3, New Zeland, Canada, Mexico, Austral...

Journal: :Transactions of the Architectural Institute of Japan 1963

Semi-buried structures are most commonly used at first line of defense along the border between two countries. This demands investigation of their dynamic behaviour under blast loading. Herein, a semi-buried structure with foam sandwiched walls and buttresses to reduce the effect of blast is analysed. The effect of provision of different configurations of buttresses and foam core between two la...

Maghbouli, M., Mohammadnezhad, Z., Yaghubi Agreh, O.,

 In the real world applications, there are some situations where inputs and outputs are time-dependent and are affected during the production periods. Capital stock can be seen as an effective instance in such occasions. In order to handling long-time planning, dynamic structure was proposed in efficiency evaluation. In this framework, there are some of the inputs and outputs change proportiona...

J Rezaeepazhand, M Hoseinzadeh

The dynamic stability of a composite plate with external electrorheological (ER) damper subjected to an axial periodic load is investigated. Electrorheological fluids are a class of smart materials, which exhibit reversible changes in mechanical properties when subjected to an electric field. As a result, the dynamic behavior of the structure is changed. The ER damper is used for suppressing th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی مکانیک 1386

در این رساله رفتار دینامیکی استوانه جدار ضخیم از جنس مواد هدفمند با طول بلند و کوتاه مورد تحلیل قرار می گیرد. بطور کلی، سعی شده است مواردی که تا کنون توسط سایر محققین به آنها پرداخته شده است. مورد بحث و تحلیل قرار گیردبرای تحلیل دینامیکی استوانه جدار ضخیم هدفمند با طول بلند تحت شوک مکانیکی، فرض شده است که استوانه از چندین لایه در راستای ضخامت تشکیل شده و نیز جنس هر لایه همسانگرد و در بخشی دیگر ...

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