Thursday, March 12, 2009

Pipe Stress Analysis

Piping stress analysis is an important method to make sure and set a numeric system that piping system in the engineering is safe. Expenses (Style, Moment and voltage) that occurs on the actual pipe and equipment Nozzle made such that the load does not exceed the limits set by the International Standard and Code (ASME, ANSI, API, WRC, NEMA, etc.). In the analysis that the burden is due to the influence of the treatment burden of static load and dynamic treatment. Installation support (buffer) is the most important so that the influence of loading (static and dynamic) for piping operating system does not fail or malfunction. 

Static load (sustain, expansi and operating) is essentially a burden caused by the influence of internal pressure, temperature and weight of pipe material and all components in the system. Apart from the static load can also be caused by the external load, ie, earthquakes, thrust load from the relief valve, wind and wave and the ultimate burden of the land when the pipe is in the land (under ground). Burden than the static ultimate load due to land is often called the burden "occational static" or better known as the burden of "quasi dynamic", said so because the burden is considered as if the burden of dynamic but not the function of time. Limitation of voltage that occurs on the actual load dynamic quasi not exceed from 1.33Sh. 

Load dynamics (occasional) to consider the external load as a function of time [W = f (t)], among others, the earthquake (seismic), operation of safety valve, vibrasi (pulsation), and water hammer. In analysis of the dynamics, the amount of natural frequency can be calculated or estimated when the scale of the source frequency extraksi engine rotation frequency and time piping system  can be known beforehand. Frequency extraksi engine rotation can be from the vendor data information, while the frequency piping private system can be calculated using the formula  with the model based on the (routing) is  piping system. Analysis of the dynamics of this can be done using several methods, namely: Capital, Spectrum, Harmonic and Time History.

3 comments:

  1. For Stress training visit
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  2. This is very good information.i think it's useful advice. really nice blog. keep it up!!!

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