A set of methods is developed to determine the changes in frequencies and mode shapes of a structure resulting from modifications of the structure. These modifications can involve an increase in the number of degrees of freedom of the system as well as changes in already existing entries in the mass and stiffness matrices of the model of the structure. Indeed, the modification may consist entirely of a refinement of the structural model. In the procedures used, each mode and frequency is .treated separately without any. need to know the other modes and frequencies. An exception is the case of multiple or close frequencies, where the whole set of equal or close eigenvalues and their eigenvectors. must be treated together. Calculatio...
Vibration and acoustic requirements are becoming increasingly important in the design of mechanical ...
Structural dynamic modification techniques can be defined as methods by which dynamic behavior of a ...
The problem of the structural analysis under changes of dynamical parameters is of particular intere...
A set of methods is developed to determine the changes in frequencies and mode shapes of a structur...
141 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1986.The subject of this study is ...
A set of methods is presented for convenient calculation of the changes in the frequency and shape o...
Structural modification techniques are widely used to predict the dynamic characteristics of modifie...
The paper presents efficient methods for determining the modified modal parameters (natural frequenc...
The methods of structural dynamic modification, especially those with their roots in finite element ...
The methods of structural dynamic modification, especially those with their roots in finite element ...
Structural modification needs to prescribe some structural frequencies and mode shapes. This study d...
Structural dynamic modification is a popular approach to obtain desire frequencies and dynamic chara...
Abstract. Structural dynamic modification techniques attempt to reduce dynamic design time and can b...
A procedure is described for the redesign of undamped unforced linear structural systems to meet spe...
A condensation method and computer program are described for large discrete parameter vibration anal...
Vibration and acoustic requirements are becoming increasingly important in the design of mechanical ...
Structural dynamic modification techniques can be defined as methods by which dynamic behavior of a ...
The problem of the structural analysis under changes of dynamical parameters is of particular intere...
A set of methods is developed to determine the changes in frequencies and mode shapes of a structur...
141 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1986.The subject of this study is ...
A set of methods is presented for convenient calculation of the changes in the frequency and shape o...
Structural modification techniques are widely used to predict the dynamic characteristics of modifie...
The paper presents efficient methods for determining the modified modal parameters (natural frequenc...
The methods of structural dynamic modification, especially those with their roots in finite element ...
The methods of structural dynamic modification, especially those with their roots in finite element ...
Structural modification needs to prescribe some structural frequencies and mode shapes. This study d...
Structural dynamic modification is a popular approach to obtain desire frequencies and dynamic chara...
Abstract. Structural dynamic modification techniques attempt to reduce dynamic design time and can b...
A procedure is described for the redesign of undamped unforced linear structural systems to meet spe...
A condensation method and computer program are described for large discrete parameter vibration anal...
Vibration and acoustic requirements are becoming increasingly important in the design of mechanical ...
Structural dynamic modification techniques can be defined as methods by which dynamic behavior of a ...
The problem of the structural analysis under changes of dynamical parameters is of particular intere...