Study on Dynamic Characteristics of Heavy Machine Tool-Composite Pile Foundation-Soil

Autor: CAI Li-Gang, TIAN Yang, LIU Zhi-Feng, WANG Quan-Tie, NING Yue
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Sensors & Transducers, Vol 179, Iss 9, Pp 29-35 (2014)
ISSN: 1726-5479
2306-8515
Popis: Heavy duty computer numerical control machine tools have characteristics of large self-weight, load and. The insufficiency of foundation bearing capacity leads to deformation of lathe bed, which effects machining accuracy. A combined-layer foundation model is created to describe the pile group foundation of multi-soil layer in this paper. Considering piles and soil in pile group as transversely isotropic material, equivalent constitutive relationship of composite foundation is constructed. A mathematical model is established by the introduction of boundary conditions, which is based on heavy duty computer numerical control machine tools-composite pile foundation-soil interaction system. And then, the response of different soil and pile depth is studied by a case. The model improves motion accuracy of machine tools.
Databáze: OpenAIRE