The paper describes an approach to predicting gas explosion loads and response which has been developed for offshore installations and which only recently has been adapted to onshore petrochemical facilities. The paper consists of three parts: Part 1: An overview of vapour cloud explosion hazards in petrochemical onshore facilities and a discussion of modeling approaches. Part 2: A probabilisti...

The research paper presents a novel approach toward constructing motion equations for structures with attached MTMDs (multiple tuned mass dampers). A primary system MDOF dynamic degrees of freedom) was reduced to an equivalent SDOF (single degree through the modal approach, and from additional were added thus-created system. Optimization based on ℌ2 ℌ∞ transfer function associated generalized d...

An input velocity adjustment method of the critical double impulse (DI) is presented for efficient design viscous dampers elastic-plastic moment frames. The adjusted so that energy to lowest eigenmode under DI equal those selected recorded ground motions. This makes work as active earthquake. response bounding property supported by, (1) multi-modal DI, (2) usual excitation mode motions, (3) lar...

This paper proposes a design procedure to determine the optimal configuration of multi-degrees freedom (MDOF) multiple tuned mass dampers (MTMD) mitigate global dynamic aeroelastic response aerospace structures. The computation aerodynamic excitations is performed considering two models atmospheric disturbances, namely, Power Spectral Density (PSD) modelled with Davenport Spectrum (DS) and Tune...

Rotating machines are intrinsically susceptible to expensive and high-risk faults such as rotor–stator rub. During a rub event normal tangential forces generated by the contact friction that cause wear at contacting interfaces. In present work, computed assuming linear elastic Coulomb multiple interface locations. A finite element shaft-line model of horizontally mounted rotor is used demonstra...