Response of long-gauge strain sensors in proximity of force application point

2018 ◽  
Author(s):  
Rachel Marek ◽  
Branko Glisic
Keyword(s):  
Strain Sensors ◽  
Force Application ◽  
Application Point ◽  
Force Application Point

The influence of the femoral force application point on tibial cementing pressure in cemented UKA: an experimental study

2012 ◽  
Vol 132 (11) ◽  
pp. 1589-1594 ◽  
Author(s):  
Sebastian Jaeger ◽  
Astrid Helling ◽  
Rudi G. Bitsch ◽  
Joern B. Seeger ◽  
Christian Schuld ◽  
...  
Keyword(s):  
Experimental Study ◽  
Force Application ◽  
Application Point ◽  
Force Application Point

scholarly journals Effect of Cutting Speed and Depth on the Course of Resultant Force Acting on a Cultivator Tine

2016 ◽  
Vol 20 (1) ◽  
pp. 127-136
Author(s):  
Zygmunt Owsiak ◽  
Krzysztof Lejman ◽  
Krzysztof Pieczarka ◽  
Tomasz Sekutowski
Keyword(s):  
Tilt Angle ◽  
Cutting Speed ◽  
Resultant Force ◽  
Regression Equations ◽  
Cutting Depth ◽  
Volumetric Density ◽  
Force Application ◽  
Application Point ◽  
Force Application Point ◽  
Flexibility Coefficient

AbstractThe paper presents research results on the effect of cutting depth and speed on the resultant force tilt angle and location of its application point on a flexible tine ended with a cultivator point. The studies were carried out in field conditions in sandy clay with the gravimetric moisture of 11.2% and volumetric density of 1470 kg·m−3. Tines whose flexibility coefficient was 0.0061; 0.0711; 0.0953 and 0.1406 m·kN−1 were used. It was found out that that the resultant force tilt angle raises at the increase of the cutting speed and drops at the increase of depth but this angle and its gradient at the increase of the cutting depth grow along with the decrease of the flexibility coefficient of tines. The increase of the cutting speed and depth causes the decrease of both the distance of the resultant force application point on the tool from the bottom of a furrow and a proportion of this parameter to the cutting depth. The courses of the distance of the resultant force application point on the tool from the bottom of a furrow and courses of proportion of this parameter to the cutting depth as the function of cutting do not differ significantly for tines with higher flexibility coefficients while for the most rigid tine values of these parameters and their gradients are higher. All obtained courses of the analysed values as a function of depth and cutting speed were described with regression equations.

Modeling of Contact Patch in Dual-Chamber Pneumatic Tires

2018 ◽  
Vol 46 (2) ◽  
pp. 78-92 ◽  
Author(s):  
A. I. Kubba ◽  
G. J. Hall ◽  
S. Varghese ◽  
O. A. Olatunbosun ◽  
C. J. Anthony
Keyword(s):  
Strain Sensors ◽  
Surface Strain ◽  
Wireless Data ◽  
Data Logger ◽  
Dual Chamber ◽  
Piezoelectric Polymer ◽  
Pure Rolling ◽  
Piezoelectric Elements ◽  
Strain Data ◽  
Deformation Patterns

ABSTRACT This study presents an investigation of the inner tire surface strain measurement by using piezoelectric polymer transducers adhered on the inner liner of the tire, acting as strain sensors in both conventional and dual-chamber tires. The piezoelectric elements generate electrical charges when strain is applied. The inner liner tire strain can be found from the generated charge. A wireless data logger was employed to measure and transmit the measured signals from the piezoelectric elements to a PC to store and display the readout signals in real time. The strain data can be used as a monitoring system to recognize tire-loading conditions (e.g., traction, braking, and cornering) in smart tire technology. Finite element simulations, using ABAQUS, were employed to estimate tire deformation patterns in both conventional and dual-chamber tires for pure rolling and steady-state cornering conditions for different inflation pressures to simulate on-road and off-road riding tire performances and to compare with the experimental results obtained from both the piezoelectric transducers and tire test rig.

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