Unification of the stress-strain state investigation of the supporting structural systems
Journal Title: Вісник Тернопільського національного технічного університету - Year 2015, Vol 78, Issue 2
Abstract
Development of analytical methods for calculating complex structural systems, statically-indeterminated relatively the external support and internal force factors simultaneously require further development. In most cases, external loads acting on structural elements is variable, so the detailed calculations of the stress-strain state of this factor should be taken into account. In this work the aim is to simplify the solution of statically-defined structural systems while building available generic functions taking into account the variable external loading. The calculation results are compared with the results obtained using PPP Lira 9.2. The solution of this problem on PC using software packages (PPP) in, which calculation models are constructed by the finite element method (FEM) is complicated, and complexity of the task being an external AC load, which results in approximate definition of internal power factors. The general case of external load distribution on the structural elements of the system has been analysed. The multipurpose algorithm for recording functions of bending, torque and potential energy of deformation has been list. The entry function points are unknown values of both external support reactions and internal power factors. For example, the specific design of solid fertilizer spreader PRT-10 will conduct analytical (and experimental) studies for probable cases the distribution of external load on the trailer body. For similar cases the frame was calculated using PPP Lear-9.2. Analysis of the results testified the effectiveness of the frame structures calculation MMPED with any external load distribution on the spreader body.
Authors and Affiliations
Pavlo Popovych, Mykola Stashkiv, Taras Dovbush
Keywords
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