Consolidation of an Anisotropic Soil Stratum on a Smooth-Rigid Base Due to Surface Loads

In this paper, soft-morphing, deformation control by fabric structures and soft-jumping mechanisms using magnetic yield points are studied. The durability and adaptability of existing rigid-base jumping mechanisms are improved by a soft-morphing process that employs the residual stress of a polymer. Although rigid body-based jumping mechanisms are used, they are driven by multiple components and complex structures. Therefore, they have drawbacks in terms of shock durability and fatigue accumulation. To improve these problems, soft-jumping mechanisms are designed using soft polymer materials and soft-morphing techniques with excellent shock resistance and environmental adaptability. To this end, a soft jumping mechanism is designed to store energy using the air pressure inside the structure, and the thickness of the polymer layer is adjusted based on the method applied for controlling the polymer freedom and residual stress deformation. The soft jumping mechanism can transfer energy more efficiently and stably using an energy storage and release mechanism and the rounded ankle structure designed using soft morphing. Therefore, the soft morphing and mechanisms of energy retention and release were applied to fabricate a soft robot prototype that can move in the desired direction and jump; the performance experiment was carried out.

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A Rutting-based Optimum Maintenance Decision Strategy of Hot In-place Recycling in Semi-rigid Base Asphalt Pavement

Journal of Cleaner Production ◽

10.1016/j.jclepro.2021.126663 ◽

2021 ◽

pp. 126663

Author(s):

Yuanyuan Pan ◽

Guoqiang Liu ◽

Dong Tang ◽

Dongdong Han ◽

Xuanguo Li ◽

...

Keyword(s):

Asphalt Pavement ◽

Rigid Base ◽

Decision Strategy ◽

Maintenance Decision

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On the parameterization of rigid base and basepair models of DNA from molecular dynamics simulations

Physical Chemistry Chemical Physics ◽

10.1039/b919565n ◽

2009 ◽

Vol 11 (45) ◽

pp. 10565 ◽

Cited By ~ 46

Author(s):

F. Lankaš ◽

O. Gonzalez ◽

L. M. Heffler ◽

G. Stoll ◽

M. Moakher ◽

...

Keyword(s):

Molecular Dynamics ◽

Molecular Dynamics Simulations ◽

Rigid Base ◽

Dynamics Simulations

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Modeling an Aquifer: Numerical Solution to the Groundwater Flow Equation

Mathematical Problems in Engineering ◽

10.1155/2019/1613726 ◽

2019 ◽

Vol 2019 ◽

pp. 1-9 ◽

Cited By ~ 2

Author(s):

V. Vázquez-Báez ◽

A. Rubio-Arellano ◽

D. García-Toral ◽

I. Rodríguez Mora

Keyword(s):

Stationary Flow ◽

Flow Equation ◽

Computational Tool ◽

Groundwater Dynamics ◽

Isotropic Media ◽

Groundwater Flow Equation ◽

The Finite Difference Method ◽

Anisotropic Soil ◽

Constant Slope

We present a model of groundwater dynamics under stationary flow and, governed by Darcy’s law of water motion through porous media, we apply it to study a 2D aquifer with water table of constant slope comprised of a homogeneous and isotropic media; the more realistic case of an homogeneous anisotropic soil is also considered. Taking into account some geophysical parameters we develop a computational routine, in the Finite Difference Method, which solves the resulting elliptic partial equation, both in a homogeneous isotropic and in a homogeneous anisotropic media. After calibration of the numerical model, this routine is used to begin a study of the Ayamonte-Huelva aquifer in Spain, a modest analysis of the system is given, and we compute the average discharge vector as well as its root mean square as a first predictive approximation of the flux in this system, providing us a signal of the location of best exploitation; long term goal is to develop a complete computational tool for the analysis of groundwater dynamics.

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