More Accurate Elastic Compliance Equation and Its Inverse Solution for Compact Specimens

2017 ◽  
pp. 212-226
Author(s):  
Xian Kui Zhu
Keyword(s):  
Elastic Compliance ◽  
Inverse Solution

SE(B) specimens under 4-point bending - recommended roller span and solutions for KI and elastic compliance

2017 ◽  
Author(s):  
Gustavo Henrique Bolognesi Donato ◽  
Kaue Lucon Carvalho ◽  
Victor André Lucas Göltl
Keyword(s):  
Elastic Compliance

Calculation of continuous beams taking into account the elastic compliance of supports

2018 ◽  
Vol 92 (4) ◽  
pp. 139-147
Author(s):  
Zh.S. Nuguzhinov ◽  
◽  
S.K. Akhmediev ◽  
S.R. Zholmagambetov ◽  
O. Khabidolda ◽  
...  
Keyword(s):  
Elastic Compliance ◽  
Continuous Beams

Mechanical and control characteristics of multilayer piezoactuator for nanomechatronics

2020 ◽  
pp. 329-333
Author(s):  
S.M. Afonin
Keyword(s):  
Elastic Compliance ◽  
And Control

The mechanical and control characteristics of multilayer piezoactuator for nanomechatronics are studied. The stiffness and elastic compliance of the multilayer piezoactuator are obtained taking into account the type of control. The characteristics of multilayer piezoactuator are determined in static and dynamic modes.

Structural-parametric model of an electroelastic actuator for nanomechanics

2020 ◽  
pp. 3-11
Author(s):  
S.M. Afonin
Keyword(s):  
Transfer Function ◽  
Piezoelectric Actuator ◽  
Transfer Functions ◽  
Piezoelectric Effect ◽  
Parametric Model ◽  
Elastic Compliance ◽  
Parametric Models ◽  
Piezo Actuator ◽  
Structural Scheme ◽  
Model Transfer

Structural-parametric models, structural schemes are constructed and the transfer functions of electro-elastic actuators for nanomechanics are determined. The transfer functions of the piezoelectric actuator with the generalized piezoelectric effect are obtained. The changes in the elastic compliance and rigidity of the piezoactuator are determined taking into account the type of control. Keywords electro-elastic actuator, piezo actuator, structural-parametric model, transfer function, parametric structural scheme

Estimating the Wall Heat Flux of Unsteady Conjugated Forced Convection Between Two Corotating Disks Using an Inverse Solution Scheme

2008 ◽  
Vol 130 (12) ◽  
Author(s):  
David T. W. Lin ◽  
Hung Yi Li ◽  
Wei Mon Yan
Keyword(s):  
Heat Flux ◽  
Forced Convection ◽  
Boundary Surface ◽  
Temperature Sensors ◽  
Inverse Solution ◽  
Wall Heat Flux ◽  
Unknown Boundary ◽  
Measured Temperature ◽  
Solution Scheme ◽  
Good Agreement

An inverse solution scheme based on the conjugate gradient method with the minimization of the object function is presented for estimating the unknown wall heat flux of conjugated forced convection flows between two corotating disks from temperature measurements acquired within the flow field. The validity of the proposed approach is demonstrated via the estimation of three time- and space-dependent heat flux profiles. A good agreement is observed between the estimated results and the exact solution in every case. In general, the accuracy of the estimated results is found to improve as the temperature sensors are moved closer to the unknown boundary surface and the error in the measured temperature data is reduced.

An Investigation Into the Compliance of SCARA Robots. Part II: Experimental and Numerical Validation

1988 ◽  
Vol 110 (1) ◽  
pp. 23-30 ◽  
Author(s):  
H. A. ElMaraghy ◽  
B. Johns
Keyword(s):  
Elastic Compliance ◽  
Servo Control ◽  
Compliance Matrix ◽  
End Effector ◽  
Prismatic Parts ◽  
Numerical Solution Methods ◽  
Solution Methods ◽  
Using Data ◽  
Assembly Performance ◽  
Robot Configurations

A model of inherent elastic compliance was developed for general position-controlled SCARA, with conventional joint feedback control, for both rotational and prismatic part insertion (Part I). The developed model was applied to the SKILAM and ADEPT I robots for validation. Experimental procedures and numerical solution methods are described. It was found that the ADEPT I robot employs a coupled control strategy between joints one and two which produces a constant, decoupled end effector compliance. The applicable compliance matrix, in this case, is presented and the experimental results are discussed. The model may be used to develop compliance maps that define the amount of end effector compliance, as a function of the joints compliance, as well as its variation for different robot configurations. This is illustrated using data for the SKILAM SCARA robot. Results are plotted and discussed. The most appropriate robot postures for assembly were found for both rotational and prismatic parts. The conditions necessary to achieve compliance or semicompliance centers with the SKILAM robot were examined. The results and methods demonstrated in these examples may be used to select appropriate robots for given applications. They can also guide robot designers in selecting joint servo-control gains to obtain the desired joints compliance ratio and improve assembly performance.

Comparison of sparse-grid geometric and random sampling methods in nonlinear inverse solution uncertainty estimation

2012 ◽  
Vol 61 (1) ◽  
pp. 28-41 ◽  
Author(s):  
Michael J. Tompkins ◽  
Juan Luis Fernández Martínez ◽  
Zulima Fernández Muñiz
Keyword(s):  
Random Sampling ◽  
Sampling Methods ◽  
Uncertainty Estimation ◽  
Inverse Solution ◽  
Sparse Grid

Visco-Elastic Properties of the Mesogloea of Jellyfish

1964 ◽  
Vol 41 (2) ◽  
pp. 363-369
Author(s):  
R. McN. ALEXANDER
Keyword(s):  
Elastic Properties ◽  
Elastic Compliance ◽  
Creep Recovery ◽  
Broad Distribution ◽  
Polymeric Gels

The mesogloea of Scyphozoa (Cymrea and Chrysaora) differs from that of Anthozoa in having higher elastic compliance, in having a broad distribution of retardation times, and in that creep recovery is very slow. In the second of these properties the scyphozoan mesogloea resembles simple polymeric gels.

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