The eigenstructure assignment technique is applied for the vibration control of a clamped/clamped beam to change the eigenfrequencies, damping values and mode shapes so as to agree with prespecified values. Experimental results show that damping can be increased, vibration amplitudes of selected points...
Finite element modeling of MEMS piezoelectric clamped-clamped beam resonators is investigated using a design matrix consisting of beams of varying length and film thickness. Laser Doppler vibrometry was performed on fabricated devices to obtain frequency response, modeshapes, and deflection magnitudes at ...
摘要: Not Available On leave from Corporate R and D division, Bharat Heavy Electricals Limited, Vikasnagar, Hyderabad-500 593, India. 关键词: HIGH-TC SUPERCONDUCTING MATERIAL BOVINE ALVEOLAR MACROPHAGES INVITRO EFFECTS DOI: 10.1016/0022-460X(89)90615-9 被引量: 37 年份: 1989 收藏...
whereEis the modulus of elasticity;Iis the microbeam moment of inertia;cis the damping coefficient;Ais the cross sectional area;ρis the density;εis the air permittivity;dis the air-gap thickness;tis time;xis the position along the beam;Nis the axial force;bis the beam width; andwis the ...
where ϕi(x) is selected to be the ith undamped, unforced and linear orthonormal clamped–clamped beam mode shape; ui(t) is the ith modal coordinate; and n is the number of assumed modes. To determine the mode shape functions ϕ(x), we can solve the eigenvalue problem as follows:...
Free vibration analysis of a non-uniform beam with multiple point masses The natural frequencies and the corresponding mode shapes of a non-uniform beam carrying multiple point masses are determined by using the analytical-and-n... Jong-Shyong Wu,M Hsieh - 《Structural Engineering & Mechanics》 ...
On the natural frequencies and mode shapes of a multiple-step beam carrying a number of intermediate lumped masses and rotary inertias In the existing reports regarding free transverse vibrations of the Euler-Bernoulli beams, most of them studied a uniform beam carrying various concentrate... Hsien...
The axial displacements are approximated with the first vibration mode clamped-camped beam functions. The ordinary trigonometric series are employed to represent the displacements in hoop direction. The buckling problem is reduced to the calculation of the minimum eigenvalue for the homogeneous system of...
Micromanipulation and biological, material science, and medical applications often require to control or measure the forces asserted on small objects. Here, we demonstrate for the first time the microprinting of a novel fiber-tip-polymer clamped-beam probe micro-force sensor for the examination of ...
mode shapesrectangular platesFEMThe alysis of free vibrations on rectangular plates with mixed conditions of buckling in the thermal environment is carried out by means of the 3D elasticity theory. In this paper there has been analyzed by the finite element method (FEM), the mode shape and the...