Figure 1.13 below shows a sketch of defects and the dimensions of the actual measurement results on the pipeline.
Based on this sketch, foreign matter that falls that cause defects in the pipe will be simulated using computer software-based method to get the element to approximate the detail of such foreign objects from the body which includes the dimension, volume, and mass.
With the simulation, prediction of collision speed foreign bodies towards the pipe will also be performed.
Input Simulation Data
Data for modeling of geometry and material properties used for the purposes of computer simulation presented in Table 1.1 and Table 1.2.
The Simulation Result
In the computer simulation, foreign matter assumed square-shaped modeled with wide variations dimension. The simulation shown that dimension foreign matter most likely a damaged form inflicted on pipe as described in the Picture 1.13 is foreign matter with a girth mm, 2 with long and broad each of 16,96 mm ( see Picture 1.14 ).
The simulation, also obtained conclusion that condition foreign matter most probable collapse upon pipe is foreign matter to the volume of roughly of 575,28 mm3, with masses of 4.5 grams and speed pile drivers by 26 m/s ( or equivalent to fall at a height 34,5 meters ).
It means that foreign matter which falls on pipe although weighing relatively small will can result in failure pipe ( resulting from plastic deformation ) if the package falls on a relative high altitude. The speed of pile drivers resulting from the acceleration of gravity is a function of heights. The Table 1.7 shown the results of the prediction of detail foreign matter fell.
to be continue to others simulation result on Boiler Tube Research (Bottom Slope) Part 6.
No comments:
Post a Comment