Dynamic stiffness matrix for analysis of modal properties the damaged composite wing
Publish Year: 1397
Type: Journal paper
Language: English
View: 177
This Paper With 5 Page And PDF Format Ready To Download
- Certificate
- I'm the author of the paper
Export:
Document National Code:
JR_JASTI-11-1_002
Index date: 30 July 2023
Dynamic stiffness matrix for analysis of modal properties the damaged composite wing abstract
In this paper, damage in composite wings is introduced, firstly, then using Euler- Bernoulli equations with including flexural and torsional coupling, governing equations on cantilevered composite wing is derived. By applying separation method damaged beam is converted to two interconnected intact beams and using boundary conditions and continues conditions in damage location, the dynamic stiffness matrix is composed and modal analysis of damaged wing is done. Composite type is fiber-reinforced and damage type is edge crack with various locations and depths. Also effects crack depths and locations on modal properties in various fiber angle are examined. Results showed that existence a crack even with small depth in root of large span wing can reduce natural frequencies, seriously.
Dynamic stiffness matrix for analysis of modal properties the damaged composite wing Keywords:
Dynamic stiffness matrix for analysis of modal properties the damaged composite wing authors
Shahrokh Shams
Faculty of New Sciences and Technologies
A.R. Torabi
Fracture Research Laboratory, Faculty of New Science and Technologies, University of Tehran
Mahdi Fathi Narab
Department of Aerospace Engineering, Faculty of New Sciences and Technologies, University of Tehran
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :