TOLERANCE SYNTHESIS ADOPTING A NONLINEAR-PROGRAMMING APPROACH

One of the main objectives in tolerance charting is to determine the w orking dimensions and tolerances at the lowest cost without violating the blueprint specifications. In view of this, this paper presents a s imple dimensional chains identification method. After establishing all necessary equations and constraints, a nonlinear objective function i s formulated. Subsequently, all these relationships are submitted to a n optimisation software, OPTIVAR written in FORTRAN for the determinat ion of the unknown variables. In addition, an example is incorporated to demonstrate the effectiveness of this proposed methodology.