Elasticity Of Spring Research Articles

The Relationship Between Constant and Spring Stretch in Hooke's Law Material Using Virtual Lab (PhET)

<p>This study aims to analyze the relationship between spring constant and spring stretch using Virtual Lab (PhET). The method used in this study is an experimental method that allows testing hypotheses or theories through the control of certain variables to understand the cause-and-effect relationship between independent and dependent variables. The independent variable in this study is the mass that is changed to affect the spring, while the dependent variable is the change in the position of the spring and the force produced. The simulation was carried out using PheT learning media. The first thing to do is to vary the mass. Then you will get the result of increasing the length for each mass. After that, the data that has been obtained is analyzed to determine the spring coefficient. Based on these simulations, it can be concluded that a spring's elasticity level influences the stretching level that occurs after a spring is treated in the form of varying masses.<em> </em></p>

Hydraulic sensitivity analysis of discharge control valve: An experimental approach

Unexpected variations in spring characteristics could affect the performance of discharge control valves. In this study, a novel experimental procedure was used to quantify the effects of the spring's elasticity coefficient and unloaded spring length on water delivery by the discharge control valve. Based on an average sensitivity index reflecting the performance of a given structure, the hydraulic behavior of the discharge control valve was quantified. The results indicate that the valve was sensitive to the unloaded spring length, especially when it was slightly smaller than its nominal value. The discharge control valve performance was affected no more than about 16% by ± 4% variation in spring elasticity. In general, spring elasticity variations affect the valve of the smaller design discharge more than that designed for a higher discharge value. The outcome of this study should help design and fabricate discharge control valves to enhance their performance.

A Study on the Element Technologies in Flame Arrester of End Line

An end-line flame arrester allows free venting in combination with flame protection for vertical vent applications. End-line flame arresters are employed in various fields, especially in shipping. In flame arresters, springs are essential parts because the spring load and the spring's elasticity determine the hood opening moment. In addition, the spring has to work under a high-temperature condition because of the burning gas flame. Therefore, it is necessary to analyze the mechanical load and elasticity of the spring when the flame starts to appear. Based on simulations of the working process of a specific end-line flame arrester, a thermal and structural analysis of the spring is performed. A three-dimensional model of a burned spring is built using computational fluid dynamics (CFD) simulation. Results of the CFD analysis are input into a finite element method simulation to analyze the spring structure. The research team focused on three cases of spring loads: 43, 93, and 56 kg, correspondingly, at 150 mm of spring deflection. Consequently, the spring load was reduced by 10 kg after 5 min under a 1,000 oC heat condition. The simulation results can be used to predict and estimate the spring’s load and elasticity at the burning time variation. Moreover, the obtained outcome can provide the industry with references to optimize the design of the spring as well as that of the flame arrester.