Skin contact forces extracted from human nerve signals-a possible feedback signal for FES-aided control of standing

Abstract In an effort to understand the dynamic hub forces on road vehicles, an advanced free-rolling tire-model is being developed in which the tread blocks and tire belt are modeled separately. This paper presents the interim results for the tread block modeling. The finite element code ABAQUS/Explicit is used to predict the contact forces on the tread blocks based on a linear viscoelastic material model. Special attention is paid to investigating the forces on the tread blocks during the impact and release motions. A pressure and slip-rate-dependent frictional law is applied in the analysis. A simplified numerical model is also proposed where the tread blocks are discretized into linear viscoelastic spring elements. The results from both models are validated via experiments in a high-speed rolling test rig and found to be in good agreement.

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Modeling Vibration-Induced Tire-Pavement Interaction Noise in the Mid-frequency Range

Tire Science and Technology ◽

10.2346/tire.20.190222 ◽

2020 ◽

Author(s):

Sterling McBride ◽

Ricardo Burdisso ◽

Corina Sandu

Keyword(s):

Sound Intensity ◽

Element Model ◽

Dominant Frequency ◽

Contact Forces ◽

Surface Velocity ◽

New Wave ◽

Normal Surface ◽

Radiated Noise ◽

Physical Effects ◽

Effects Of Rotation

ABSTRACT Tire-pavement interaction noise (TPIN) is one of the main sources of exterior noise produced by vehicles traveling at greater than 50 kph. The dominant frequency content is typically within 500–1500 Hz. Structural tire vibrations are among the principal TPIN mechanisms. In this work, the structure of the tire is modeled and a new wave propagation solution to find its response is proposed. Multiple physical effects are accounted for in the formulation. In an effort to analyze the effects of curvature, a flat plate and a cylindrical shell model are presented. Orthotropic and nonuniform structural properties along the tire's transversal direction are included to account for differences between its sidewalls and belt. Finally, the effects of rotation and inflation pressure are also included in the formulation. Modeled frequency response functions are analyzed and validated. In addition, a new frequency-domain formulation is presented for the computation of input tread pattern contact forces. Finally, the rolling tire's normal surface velocity response is coupled with a boundary element model to demonstrate the radiated noise at the leading and trailing edge locations. These results are then compared with experimental data measured with an on-board sound intensity system.

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THE EFFECT OF EARLY SKIN TO SKIN CONTACT IN TERM NEONATES AFTER C-SECTION ON BREASTFEEDING CHOICE AT THE TIME OF DISCHARGE

i-manager’s Journal on Nursing ◽

10.26634/jnur.9.2.15981 ◽

2019 ◽

Vol 9 (2) ◽

pp. 1

Author(s):

POURABOLI BATOOL ◽

ESTABRAGHI MAHDIEH ◽

JAHANI YOUNES ◽

◽

...

Keyword(s):

Term Neonates ◽

Skin Contact ◽

Skin To Skin

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OLIN C197

Alloy Digest ◽

10.31399/asm.ad.cu0627 ◽

1999 ◽

Vol 48 (1) ◽

Keyword(s):

Thermal Conductivity ◽

Wear Resistance ◽

Physical Properties ◽

Tensile Properties ◽

High Performance ◽

Corrosion And Wear ◽

Contact Forces ◽

High Current ◽

Lower Strength ◽

Current Carrying Capability

Abstract Olin C197 is a second-generation high performance alloy developed by Olin Brass. It has a strength and bend formability similar to C194 (see Alloy Digest Cu-360, September 1978), but with 25% higher electrical and thermal conductivity. High conductivity allows C197 to replace brasses and bronzes in applications where high current-carrying capability is required. Also, the strength of C197 provides higher contact forces when substituted for many lower strength coppers. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion and wear resistance as well as forming and joining. Filing Code: CU-627. Producer or source: Olin Brass.

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