Motion with rocking of a mechanical system with three degrees of freedom

1981 ◽  
Vol 17 (1) ◽  
pp. 91-96
Author(s):  
L. G. Lobas
Keyword(s):  
Mechanical System ◽  
Degrees Of Freedom ◽  
Three Degrees Of Freedom

scholarly journals DEVELOPMENT OF A NEW STRUCTURE OF 3-DOF PIEZORESISTIVE ACCELEROMETER TO ENHANCE THE SENSITIVITY

2010 ◽  
Vol 13 (2) ◽  
pp. 57-65
Author(s):  
Tan Duc Tran
Keyword(s):  
Mechanical System ◽  
Degrees Of Freedom ◽  
Micro Electro Mechanical System ◽  
Ansys Software ◽  
Mems Sensors ◽  
Mems Technology ◽  
Mems Device ◽  
Three Degrees Of Freedom

Nowadays, the Micro Electro Mechanical System (MEMS) technology’ has been achieved great developments. Accelerometer is one kind of the most popular MEMS sensors due to it's widely applications. In order to fabricate any MEMS device, the design and simulation have been considered seriously. This paper presents a new design of the three degrees of freedom piezoresistive accelerometer to improve the sensitivity, urgent demand from the reality. The ANSYS software was utilized to design, simulate and evaluate the advantages of this new structure compared to other sensors fabricated previously.

Analysis of a Nonlinear Mechanical System With Three Degrees of Freedom

1959 ◽  
Vol 26 (4) ◽  
pp. 546-548
Author(s):  
S. A. Hovanessian
Keyword(s):  
Steady State ◽  
Mechanical System ◽  
Degrees Of Freedom ◽  
Amplitude Equations ◽  
Response Curves ◽  
Nonlinear Mechanical ◽  
Nonlinear Mechanical System ◽  
Nonlinear Mechanical Systems ◽  
Steady State Amplitude ◽  
Three Degrees Of Freedom

Abstract In recent years the methods of solution of nonlinear vibratory systems with one degree of freedom have been extended to the solution of nonlinear systems with two degrees of freedom. For these systems, the steady-state amplitude equations can be obtained by several methods, such as perturbation and the iteration method introduced by Duffing. In this paper the amplitude-frequency equations for a nonlinear mechanical system with three degrees of freedom are obtained, using Duffing’s method for obtaining the steady-state amplitude equations [1]. The steady-state response curves of two nonlinear mechanical systems, each having three degrees of freedom, are given.

scholarly journals Active Disturbance Rejection for a Three Degrees of Freedom Gyroscope

2018 ◽  
Vol 51 (13) ◽  
pp. 372-377 ◽  
Author(s):  
Juan E. Andrade García ◽  
Alejandra Ferreira de Loza ◽  
Luis T. Aguilar ◽  
Ramón I. Verdés
Keyword(s):  
Disturbance Rejection ◽  
Degrees Of Freedom ◽  
Active Disturbance Rejection ◽  
Three Degrees Of Freedom

scholarly journals Cyclic Deformation of Microcantilevers Using In-Situ Micromanipulation

2021 ◽  
Author(s):  
A. H. S. Iyer ◽  
M. H. Colliander
Keyword(s):  
Degrees Of Freedom ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Structural Components ◽  
Cyclic Testing ◽  
Phase Boundaries ◽  
Bulk Specimen ◽  
Arbitrary Position ◽  
Three Degrees Of Freedom

Abstract Background The trend in miniaturisation of structural components and continuous development of more advanced crystal plasticity models point towards the need for understanding cyclic properties of engineering materials at the microscale. Though the technology of focused ion beam milling enables the preparation of micron-sized samples for mechanical testing using nanoindenters, much of the focus has been on monotonic testing since the limited 1D motion of nanoindenters imposes restrictions on both sample preparation and cyclic testing. Objective/Methods In this work, we present an approach for cyclic microcantilever bending using a micromanipulator setup having three degrees of freedom, thereby offering more flexibility. Results The method has been demonstrated and validated by cyclic bending of Alloy 718plus microcantilevers prepared on a bulk specimen. The experiments reveal that this method is reliable and produces results that are comparable to a nanoindenter setup. Conclusions Due to the flexibility of the method, it offers straightforward testing of cantilevers manufactured at arbitrary position on bulk samples with fully reversed plastic deformation. Specific microstructural features, e.g., selected orientations, grain boundaries, phase boundaries etc., can therefore be easily targeted.

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