Determining the dynamic characteristics of elastic shell structures

نویسندگان

چکیده

Building structures are very often operated under the action of dynamic loads, both natural and man-made. The calculation influence static loads has been quite widely studied in detail. When exposed to additional tests carried out, where measuring instruments installed on register stresses deformations that occur during influences. Elastic elements responsible functional unit many instruments. Therefore, quality elastic ensures operational stability entire structure. This determines increased attention is paid technology construction elements. Previously, work made homogeneous mono materials with same physical geometric properties all directions over surface element was studied. considered as a shell rotation complex shape meridian various mechanical at points caused by uneven reinforcement. Two types reinforcement were implied ‒ radial circular. (ESE) operate conditions loading. equation derived for determining characteristics inhomogeneous dependences first three frequencies oscillations thickness depth corrugation two have analyzed. amplitude-frequency (AFC) phase-frequency (PFC) depending parameters calculated. All these results could significantly improve readings instruments, which depend sensitivity And it, turn, depends

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

the role of task-based techniques on the acquisition of english language structures by the intermediate efl students

this study examines the effetivenss of task-based activities in helping students learn english language structures for a better communication. initially, a michigan test was administered to the two groups of 52 students majoring in english at the allameh ghotb -e- ravandi university to ensure their homogeneity. the students scores on the grammar part of this test were also regarded as their pre...

15 صفحه اول

investigating the feasibility of a proposed model for geometric design of deployable arch structures

deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...

Non-Linear Dynamic Analysis of Composite Conical Shell Structures

One of the main objectives of aircraft and automotive manufacturers is related to improvement of the crash behaviour of lightweight structures. The absorbed energy is an important parameter for the development of the vehicle passive security concept. In present paper, the composite laminate of conical shell structures subjected to slip loading are studied by using finite element method. ANSYS/L...

متن کامل

Deformation Characteristics of Composite Structures

The composites provide design flexibility because many of them can be moulded into complex shapes. The carbon fibre-reinforced epoxy composites exhibit excellent fatigue tolerance and high specific strength and stiffness which have led to numerous advanced applications ranging from the military and civil aircraft structures to the consumer products. However, the modelling of the beams undergoin...

متن کامل

dynamic coloring of graph

در این پایان نامه رنگ آمیزی دینامیکی یک گراف را بیان و مطالعه می کنیم. یک –kرنگ آمیزی سره ی رأسی گراف g را رنگ آمیزی دینامیکی می نامند اگر در همسایه های هر رأس v?v(g) با درجه ی حداقل 2، حداقل 2 رنگ متفاوت ظاهر شوند. کوچکترین عدد صحیح k، به طوری که g دارای –kرنگ آمیزی دینامیکی باشد را عدد رنگی دینامیکی g می نامند و آنرا با نماد ?_2 (g) نمایش می دهند. مونت گمری حدس زده است که تمام گراف های منتظم ...

15 صفحه اول

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: Eastern-European Journal of Enterprise Technologies

سال: 2021

ISSN: ['1729-3774', '1729-4061']

DOI: https://doi.org/10.15587/1729-4061.2021.245885