Aiming to the vibration analysis and control of the multi-pump system, this paper proposed the clamps' locations optimization to minimize the system impedance at vibration frequencies. Firstly, the models of the flexible clamp and other components in multi-pump system were established, based on ...
In the analysis, the axial cutting force Wc, and axial friction force Wf are averaged over one axial limit cycle. The bit–rock interaction law then gives rise to the corresponding torque-on-bit. It is noted that the axial limit cycle and the averaged torque-on-bit are dependent on the ...
1. trial, research, check, investigation, attempt, analysis, assessment, proof, examination, evaluation, acid test High levels of dioxin were confirmed by scientific tests. 2. examination, paper, assessment, evaluation Only 922 pupils passed the test. 3. measure, standard, proof, barometer, yards...
Eleven sequential time frames of this data are displayed for analysis and comparison, with the most recent time cycle displayed at the bottom of the barchart display. More or fewer time frames can be displayed and different vibration sources can be displayed. [0060] FIG. 11 shows a three-...
aThis is the main starting point for the Analysis Center software. It gives the operator a 这是主要出发点为分析中心软件。 它给操作员a [translate] aoasis 绿洲 [translate] a事在人为,路在脚下;知行一致,行胜于言;自强不息,厚德载物; Everything depends on human effort, road under foot; The ...
1Background 2Related Information 3Related Services 4Key Words 1Background Transverse acoustical waves travel perpendicular to the direction of flow and radiate outwards to the piping (shell) wall. If the shell mode natural frequency matches the transverse acoustical frequency, the wall will become res...
An analysis of the angular distribution shape for the 14C bump is reported in the Supplementary Methods and Supplementary Fig. 6. This striking behaviour reveals the dominance of a resonant state in that energy region, characterized by a well- defined angular momentum. The properties of such ...
Up to now, there are mainly four types of mathematical methods applied to BHA analysis, including finite difference method, energy method, finite element method and weighted residual method. A new method for quickly solving the lateral vibration response of Pre-bent BHA was put forward in this ...
For this reason, the technology on the measurement of the blade vibration becomes the key technology for developing the blade with high reliability, as well as the technology on the analysis. The measurement method of the blade vibration in operation is classified into two categories: one is the...
4.3.1. Analysis of Shear Keys The three shear keys on the left side of the E1-E2 section interface are numbered A, B, and C. Each shear key was marked with four corners (numbered 1–4) as monitoring points, as shown in Figure 7. The maximum principal stress, minimum principal stress...