搜索结果: 1-6 共查到“机械工程 I-beam”相关记录6条 . 查询时间(0.073 秒)
I-beam Crack Identification Based on Study of Local Flexibility due to Crack
crack identification I-beam local flexibility
2011/5/12
Local flexibility of crack plays an important role in crack identification of structures. Analytical methods on local flexibility in a cracked beam with simple geometric crossing sections, such as rec...
Vibration Control of a Composite Beam Using Self-sensing Semi-active Approach
piezoelectric elements synchronized switch damping semi-active control
2010/8/11
Structural vibration control was an active research area for the past twenty years because of their potential applications in aerospace structures, civil structures, naval structures, etc. Semi-active...
Active Control of Residual Vibrations of a Cantilever Smart Beam
Active vibration control Finite element method Moving load Piezoelectricity
2009/10/9
The aim of this study is to control the residual vibrations of a clamped-free beam subjected to a moving load. The dynamic response of the beam is calculated by using the finite element method in orde...
Laser Beam Welding of AA5052, AA5083, and AA6061 Aluminum Alloys
Laser Beam Welding AA5052 AA5083 AA6061 Aluminum Alloys
2009/9/2
The present investigation was mainly concerned with characteristics of autogeneous laser butt welding of 2 mm thickness nonheat treatable AA5052-H12, AA5083-H12 and 2 mm, 3 mm thickn...
An efficient 3D Timoshenko beam element with consistent shape functions
3D Timoshenko beam Euler-Lagrangian equation
2008/12/30
An efficient three-dimensional (3D) Timoshenko beam element is presented in this paper. First, the homogeneous Euler-Lagrangian equations governing a 3D Timoshenko beam are derived by introducing plan...
Dynamical flexibility of rod and beam systems in transportation
Applied mechanics Numerical techniques Vibrations
2008/8/30
Purpose: Purpose of this paper is to present a mathematical model of rod and beam systems in transportation. The mathematical model is presented in the form of dynamical flexibility of systems. System...