Stiffnesses are represented in series form, thereby permitting the specification of any distributions, including concentrated stiffnesses and stiffnesses with discontinuities.
Traditionally, glass fibre has been used as plastic reinforcement whenever mechanical properties of a matrix, like stiffness, do not meet the specifications.
The present formulation of HBM for column optimization is prompted by some discrepancies in the volume calculations and the specification of the spring stiffness at the clamped end in Krishna and Ram (2007) discrete link-spring model formulation.
This allows system specifications, such as the footprint/workspace ratio, maximum Cartesian speed/acceleration and even stiffness, be easily related to the machine component specifications.
These are, in most cases, off-the-shelf items which engineers select on the basis of the manufacturer's specifications (in particular the dynamic stiffness).
Comparisons between the experimental results of the initial and the serviceability-level section flexural stiffness and its corresponding values from literature and design specifications were also made.
After formulation of the problem, the optimum specifications of the absorber such as spring stiffness, absorber mass and its position are determined using an algorithm based on the mode summation method.
These are not just requirements in terms of a global structure specification, such as a first natural frequency or torsional stiffness, but targets and guidelines that a designer can utilize to create geometry.
The main international racking specifications adopt different approaches to determining the shear stiffness of cold-formed steel storage rack upright frames.
Both monotonic and cyclic responses showed that the additional bolts (and welds) significantly enhanced the bearing capacities and deformability of the connections, though the initial stiffness and equivalent stiffness (i.e., according to the EN 15512 specification) showed little improvement.
