搜索结果: 1-15 共查到“机械工程 vibration”相关记录16条 . 查询时间(0.078 秒)
Built-in vibration control may help soundproof spaces
built-in vibratio car muffler vibration
2021/8/4
A different kind of design for absorbing vibrations could help better soundproof walls and make vehicles more streamlined, a new study shows.
Experimental Investigation on Vibration Control of Rotor-bearing System with Active Magnetic Exciter
vibration control rotor-bearing system active magnetic exciter
2011/7/28
Vibration control is an efficient way to minimize a rotating machine’s vibration level so that its vibration fault-free can be realized. While，several factors, such as unbalance, misalignment and inst...
Free Vibration Analysis of Functionally Graded Plates with Multiple Circular and Non-circular Cutouts
graded materials rectangular/skew/trapezoidal/circular plates
2011/7/12
Cutouts are inevitable in structures due to practical consideration. In order to investigate the free vibration of functionally graded plates with multiple circular and non-circular cutouts, finite el...
New Method to Measure the Fill Level of the Ball Mill: Part II—Analysis of the Vibration Signals
ball mill fill level vibration signal signal processing
2011/5/12
The exact measurement of the fill level is the key and basic problem for automatic control and optimized operation of the coal pulverizing system. Because the ball mill pulverizing system is non-linea...
Vibration Characteristics and Power Transmission of Coupled Rectangular Plates with Elastic Coupling Edge and Boundary Restraints
vibration power transmission coupledplate
2011/5/12
Coupledplate structures are widely used in the practical engineering such as aeronautical, civil and naval engineering etc.Limited works can be found on the vibration of the coupledplate structure due...
New Method to Measure the Fill Level of the Ball Mill: Part II—Analysis of the Vibration Signals
ball mill fill level vibration signal signal processing
2011/1/17
The exact measurement of the fill level is the key and basic problem for automatic control and optimized operation of the coal pulverizing system. Because the ball mill pulverizing system is non-linea...
Application of artificial neural network and wavelet transform for vibration analysis of combined faults of unbalances and shaft bow
Rotor test rig Rotor faults vibration analysis, unbalance
2010/12/30
The vibration analysis of rotating machinery can give an indication of the condition of potential faults such as unbalance, bent shaft, shaft crack, bearing clearance, rotor rub, misalignment, loosene...
Finite element study of correlation between intracranial pressure and external vibration responses of human head
intracranial pressure (ICP) finite element model
2010/12/30
In this paper, the correlation between intracranial pressure (ICP) and external vibration responses of the head was studied using finite element modeling. A two-dimensional finite element model of the...
Separate Control of High Frequency Electro-hydraulic Vibration Exciter
control valves electro-hydraulic system vibration exciter
2010/9/6
The working frequency of the conventional electro-hydraulic vibration exciters, which consist of a servo valve and a hydraulic cylinder, is generally restricted within a narrow range due to limited fr...
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...
Vibration Analysis of Plates With Spot Welded Stiffeners
Stiffened Plates Spot Welding Residual Stresses
2009/12/30
In this work both theoretical and experimental investigation was carried out to study the effect of residual stresses on the vibrational characteristics of plates with spot welded stiffeners at differ...
Vibration and Buckling of In-Plane Loaded Double-Walled Carbon Nano-Tubes
Nanostructures Vibration Multiwalled carbon nanotubes
2009/10/9
The paper studies vibration and buckling of in-plane loaded double-walled carbon nanotubes. Timoshenko beam theory was used to investigate the vibration and buckling behavior of double-walled and simp...
Nonlinear vibration signature analysis of high speed rotor due to defects of rolling element
Nonlinear dynamics rolling bearing ball passage frequency
2008/12/30
This paper presents a mathematical model to investigate the nonlinear dynamic behavior of a high speed rotor-bearing system due to defects of rolling elements. Two defects have been considered for the...
Complex mathematical model and optimisation of vibration volumetric treatment for surfaces of machine parts
Mathematical modeling Vibration treatment Friable medium
2007/9/30
Purpose: The objective of this work is to develop the principles of the theoretical investigation of vibration volumetric treatment for the surfaces of articles manufactured by friable dry medium and ...
Flexible tooling for vibration-assisted microforming
Plastic forming Microforming Vibrations Flexible tooling
2007/4/30
Purpose: Miniaturisation generates necessity of micro-parts production. Micro-scale means closer tolerances and better surface roughness. These requirements can be achieved with metal forming processe...