4 results about "Force chain" patented technology

This invention discloses a high-load-bearing backing bearing with a multi-layered composite wall thickness outer ring. The bearing's dynamic blocking transition layer is composed of polyhedral rigid microparticles and a viscoplastic matrix, with the microparticle volume fraction limited within a critical blocking threshold range. Under quasi-static radial heavy loads, the microparticles are in a blocked state, forming a rigid force chain that transmits hydrostatic stress. Under high-frequency transverse shear stress wave excitation, the matrix undergoes transient superplastic rheology, and the force chain enters a locally unblocked state, resulting in micro-rheology and a sudden drop in transverse shear stiffness. Based on the orthogonal decoupling of stress states and the dual-state phase transition characteristics, this invention actively disrupts the subsurface standing wave resonance condition, resolving the contradiction between macroscopic compressive strength and microscopic dissipation. This effectively suppresses deep peeling failure under high-speed, heavy-load conditions, and its material selection and process design fully embody the energy-saving and high-efficiency concept of green manufacturing.

The application discloses a kind of coarse and fine particle inclusion photoelastic sample preparation and contact force chain network analysis method, it is related to the field of granular material mechanics test, comprising: the target porosity under different coarse grain content is calculated by discrete element method;According to target porosity and preset coarse grain content, the corresponding numerical calculation sample is generated, and the related parameters are derived to prepare coarse and fine particle inclusion photoelastic sample with the same initial density;Combined with the non-polarization and polarized photoelastic image of photoelastic sample, intergranular contact force is extracted and contact force network is constructed;Based on contact force network, extract strong contact force network and carry out mesoscopic analysis, obtain the force transmission characteristic comparison result under different coarse grain content conditions.The realization of different coarse grain content sample preparation efficiency and controllability of initial state, and based on the analysis of contact force chain network reveals the influence law of coarse grain content on force chain structure and its force transmission characteristics, it has important significance to study the force transmission mechanism and its mesostructure characteristics of coarse and fine particle inclusion system.

The present application relates to geotechnical engineering calculation and simulation technical field, disclose a kind of quantitative prediction method of rock-filled roadbed particle crushing process, the method includes: build a double-diagram structure including activation map and dormancy map, to characterize the actual force chain and potential contact of particle system;Under the driving of external load, the propagation, dissipation and accumulation of energy are simulated on the activation map, and the energy storage of each particle node is updated;By comparing the node energy storage and the critical breaking energy, determine and handle point dissipation event (particle crushing), and distribute the energy shock wave released by crushing to the adjacent nodes;Using the energy shock wave, determine and handle topological plasticity events;Finally, statistical analysis of the dissipation events in the whole process, generate quantitative prediction results about damage evolution and failure path.The present application greatly improves the calculation efficiency through the energy evolution mechanism driven by events, while truly reproducing the core physical processes of particle crushing and force chain reconstruction.