This will help to check that the design is easy to mantain and prevent future redesign process during the assembly. If you introduce the screw standard and thread size you will have the link to the recommended 3D models tools in order to check the required space to apply torque and to remove the screw. $Note 2:$ In the case of do not know the constact surfaces material the calculator will assign a friction coefficient of 0,1 (($\mu$) is 0,1)Īnother function is to help to check the maintainability. Ac- cording to it, a bolted joint is a detachable connection between two or more parts by one or. It is not so significant in the end result. task and is supported by guidelines such as VDI 2230 2. $Note 1:$ In the case that the geometry standard is unknown then the programs assigns to Dkm value the average of several screw standards.
$d_0$ diameter at the relevant smallest cross section of the bolt from the DIN 13-28 (ISO Metric Screw Threads Coarse and Fine Screw Threads from 1 to 250 mm) MITCalc - Bolted connection 1.21 1, ISO 273, ISO 1207, ISO 4016, ISO 4032, ISO 4035, ISO 4762, ISO 8738, VDI 2230.This module is a part of MITCalc - Mechanical and Technical Calculation Package for gear, belt and chain drives, springs, beam, shaft, bolt connection, shaft connection.$A_0$ Appropriate minimum cross sectional area of the bolt.
$d_2$ pitch diameter of the bolt head in mm it has been obtained from DIN 13-28 (ISO Metric Screw Threads Coarse and Fine Screw Threads from 1 to 250 mm).$\mu_K$ is the coefficient of friction in screw head (in this case we have considered $\mu_G$ and $\mu_K$ equal and obtained from UNE 17-108-81).$\mu_G$ is the coefficient of friction in the thread (in this case we have considered $\mu_G$ and $\mu_K$ equal and obtained from UNE 17-108-81).
$P$ : pitch of the thread in milimeters it has been obtained from DIN 13-28 (ISO Metric Screw Threads Coarse and Fine Screw Threads from 1 to 250 mm).