Based the effects on the comprehensive consideration of wellbore temperature change, annulus pressure, and performance parameters of cement sheath and casing, and then established the calculation method of cementing force, lifting force, and wellhead growth.
Finally, we have established the calculation models for borehole wall stress and fracture initiation pressure of hydraulic fracturing, which is based on the calculation model for equivalent coal rock mechanical parameters, to analyze the influence of mechanics properties of coal cleats on initiation pressure.
In polar coordinates, a displacement-based method of elasticity, which is derived in this paper, is applied to establish the calculation model of the elastic contact between the secondary flywheel and the friction bearing block.
The contents mainly include the following parts: (1) probing into the methods of heating/cooling measurement; (2) establishing the calculation model for thermal billing; (3) presenting several typical systems for heating/cooling cost allocation.
A static calculation is first carried out in three steps to reflect the construction process of the tunnel structure, and after the initial stress field of the ground due to the gravitation is establish, the calculation is automatically changed to dynamic analysis with the input earthquake motion.
For establishing the calculation models for Ger/MoS2 and Sil/MoS2 superlattices and to minimize the lattice mismatch between the stacking sheets, we have employed supercells consisting of 4 × 4 unit cells of germanene (and silicene) and 5 × 5 unit cells of MoS2 monolayer in the x-y plane.
Composition of renewable power system for stratospheric airships is introduced, curved paving model of solar array is established, the high accuracy calculation method for output power of solar array is proposed, and operation process of renewable power system is simulated.
A large number of studies have been established concerning the calculation of wake effect.
Models are established for the calculation of an auxiliary power unit (APU) system fuel consumption and battery SOH loss.
A procedure has been established for the calculation of dispersion relations, frequency spectra, mode shapes, and capacitance ratios of forced vibrations needed in resonator design.
A procedure has been established for the calculation of dispersion relations, frequency spectra, selected vibration modes, and capacitance ratios of forced vibrations.
