PSI - Issue 60

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Vaibhav Gangwar et al. / Procedia Structural Integrity 60 (2024) 123–135 Vaibhav Gangwar / StructuralIntegrityProcedia00(2024)000 – 000

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The impact energy is calculated by the machine automatically according to the formula: E impact = ½ m total 2

(7)

where, E impact = Impact energy v impact = Impact velocity m total = Total mass m total = m striker + m carriage + m weights + m extension where: m striker = Tup mass (bring from tup database) m carriage = Carriage mass m weights = Mass of additional weights m extension = Extension mass

By fixing the falling mass, the impact height values can be adjusted to produce a particular impact energy. Impact energy can also be set, but it will only be roughly calculated when the text is executed. The impact velocity is the only parameter that the instrument can control, and it can be controlled with two decimal places of accuracy. Therefore, the value obtained for the Impact velocity will be approximated with a precision of two decimal digits as the system recalculates the energy formula to position the tup at the proper height. As a result, the Impact energy will also be approximated. Enter the desired impact velocity or a number that complies with global standards. Using the following formula, this value is used to determine the equivalent impact height: h impact = 2 / 2g (8) where:

h impact = Equivalent impact height g = acceleration due to gravity

Fig. 17. Griping system in CEAST 9350