For any size of the goaf, there is a pressure balance arch in the overlying strata above it (Figure 2). The load of the rock strata outside the balance arch is transmitted to the arch foot by the ...

With the rapid development of high-speed rotating machinery, diaphragm couplings are widely used in energy equipment such as compressors, generators, drilling equipment, and turbine drives by virtue ...

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This paper presents a direct time-domain three dimensional (3D) numerical procedure to simulate the transient response of very large floating structures (VLFS) subjected to unsteady external loads as ...