An artificial spring component mode synthesis method for built-up structures

تحلیل مودال با استفاده از روش component mode synthesis (cms) همراه با صحه گذاری تجربی

در این پروژه روش های تحلیل مودال سازه هایی که از چند زیرسازه تشکیل شده اند بررسی شده است. از جمله این روش ها روش سنتز مودها است که ابتدا بطور مختصر تاریخچه فعالیت هایی که در این زمینه تا کنون انجام شده است بررسی شده و سپس الگوریتم های مختلف این روش مورد مطالعه قرار گرفته است. از جمله این الگوریتم ها روش سطوح مشترک ثابت و روش سطوح مشترک آزاد است طوریکه روش اول با دقت بیشتر و تنها برای داده های ت...

An Approach for Transient Response Calculation of large Nonproportionally Damped Structures using Component Mode Synthesis

A minimal complexity version of component mode synthesis is presented that requires simplified computer programming, but still provides adequate accuracy for modeling lower eigenproperties of large structures and their transient responses. The novelty is that a structural separation into components is done along a plane/surface that exhibits rigid-like behavior, thus only normal modes of each c...

Deviatoric component modes in an interval component mode synthesis procedure

This paper focuses on the integration of interval uncertainties in the procedure of the Component Mode Synthesis (CMS) method used for the dynamic analysis of large finite element (FE) models in mechanical engineering. Two methods are combined in this work: the Interval Finite Element Method for the nondeterministic eigenvalue and frequency response function analysis of FE models with uncertain...

Overlapping Component Mode Synthesis

Efficient Component Mode Synthesis with a New Interface Reduction Method

When the finite element model of a complex structure is partitioned into substructures in order to enable component mode synthesis (CMS), there may be a large number of degrees of freedom (DOF) on the interface between components. In such a case, the constraint-mode-related coordinate transformation at the substructure analysis stage becomes computationally expensive, and the CMS model may be c...