Description Usage Arguments Value References Examples
View source: R/test_functions.R
This function is a variation of the classic multi-objective optimization problem (NOWACKI, 1980). In this problem the aim is to design a tip loaded cantilever beam for minimum cross-sectional area and lowest bending stress subject to a number of constraints.
1 2 3 4 5 6 7 8 9 10 | nowacki_beam(
x,
g = c(5, 240, 120, 10, 2),
l = 1500,
F = 5000,
E = 216620,
G = 86650,
v = 0.27,
box = data.frame(b = c(10, 50), h = c(20, 250))
)
|
x |
vector of length 2 corresponds the normalized breadth and height of the beam |
g |
vector of length 5 containing the upper limits of each constraint |
l |
numeric length of the beam |
F |
numeric force applied at the beam tip |
E |
numeric elastic longitudinal moduli |
G |
numeric elastic transversal moduli |
v |
numeric poison ratio |
box |
data.frame structure containing the upper and lower limits for
|
vector of objective and constrain responses
Forrester, A., Sobester, A., & Keane, A. (2008). Engineering design via surrogate modelling: a practical guide. John Wiley & Sons.
1 2 3 4 5 |
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