inertia coefficient
1.Abstract: By getting the angular displacement change during the time fromits steady rotating to still and using least square method,the numerical control system dynamic feature parameters,such as moment of inertia, load torque, damping coefficient,etc.are estimated.The hardware,software design of measuring angular displacement based on the single-chip microcomputer 8031 and the parameter estimation algorithm procedure based on personal computer are provided.The experimental analysis of semi-closed cycle numerical control system driven by direct current servomotor shows that it is more precise than the traditional calculation result.
2.In architectural design process,the designers can control the buildings somatotype coefficient,control the building windows and doors,and control the surrounding protection structure heat transfer coefficient and thermal inertia target on the energy conservation design,to achieve the goal of the construction energy conservation.
3.Abstract: In the light of the problems of high power consumption and low working efficiency in a beam pumping unit, a new method for power saving of the unit is proposed, that is, adopting an optimum structure of the unit and decreasing the periodic load coefficient of the pumping unit by changing the performance characteristics of the electric motor and by increasing the rotary inertia of the unit.
