The author starts with the intershaft forces and displacement consistency conditions at the intershaft bearings, and calculates the critical speed of two shaft rotor systems with rigid bearings using the transfer matrix technique.

In this paper the performance maps of 2/LL and 2/HH two shaft gas turbineseries are obtained by way of calculating the off-design performance. On thisbasis,the off-design performance of these gas turbines is analyzed.

Through comparison to off design performance of PFBC CC constituted by single shaft, split shaft, or two shaft gas turbines, it comes to a conclusion that the best one is consisting of the two shaft gas turbine.

At the background of the intricate polymerization process of syndiotactic polystyrene,horizontal two shaft T shape self cleaning agitator is used and it is studied that power consumption and fluid pattern are affected by rotating speed and Hold up.

The scheme design of two shaft orientation using GPS technigue was made, and the influence value of GPS survey on the underground initial azimuth analysed and calculated so as to establish a more accurate underground control system.

Introduce the two shaft motion control system based on DMC control card and the application characteristics of the card . The basic motion types of the two shaft motion control system based on DMC control card and the means to realize it is presented in detail. A application sample of control system of X-Y numerical control workbench is given.

The speed- fluctuation of the loom crank shaft has much effect on the study of loom action and dynamic analysis. Without consideration of the fluctuation of speed, the result of any study will deviate from the actual condition to a great extent. Therefore, the calculation of the speed of the loom crank shaft and the determination of the moment of inertia of the "two shafts" (the crank shaft and the cam shaft with all the rotating parts mounted on them) is of important significance...

The speed- fluctuation of the loom crank shaft has much effect on the study of loom action and dynamic analysis. Without consideration of the fluctuation of speed, the result of any study will deviate from the actual condition to a great extent. Therefore, the calculation of the speed of the loom crank shaft and the determination of the moment of inertia of the "two shafts" (the crank shaft and the cam shaft with all the rotating parts mounted on them) is of important significance to the loom designers and research workers. This paper is first given a brief statement of the significance of the speedfluctuation of the loom crank shaft and the balance of energy. Then it suggests a method of calculating the speed-fluctuation of the loom crank shaft and determining the magnitude of the moment of inertia of the "two shafts". The main principles adopted here are: first, the use of an equivalent moment of inertia of the "two shafts" and the beating mechanism; second, broadening the sense of the work done by the resisting torque of the loom; third, assuming that the consumed energy of the picking mechanism is not directly related to the speed-fluctuation of the crank shaft. Thus, the mutual effect of the balance of energy and the fluctuation of speed which existed in Prof. A. P. Maleshef's method is now eliminated. Therefore, it is possible to derive two equations, (11) and (14), for Calculating.the speed-fluctuation of the loom crank shaft and the moment of inertia of the "two shafts" directly, instead of the cut and try method given by Prof. A. P. Maleshef. Finally, two examples are given to justify that the suggested method is practically accurate.

By using "four shaft concept" a balance system for the second order reciprocating inertia forces of the plane crankshaft eight-cylinder V-type internal combustion engines was worked out as reported in the paper[1]. In paper[ 2 ] wo have been able to acquire a "two shaft balance scheme" as a degeneracy of the "four shaft balance system" by pur-suiting a far roundabout way. By the way as a mathematical by-product it has been met possibly a new curve which could be named, perhaps, as "The Degenerated...

By using "four shaft concept" a balance system for the second order reciprocating inertia forces of the plane crankshaft eight-cylinder V-type internal combustion engines was worked out as reported in the paper[1]. In paper[ 2 ] wo have been able to acquire a "two shaft balance scheme" as a degeneracy of the "four shaft balance system" by pur-suiting a far roundabout way. By the way as a mathematical by-product it has been met possibly a new curve which could be named, perhaps, as "The Degenerated Four-Leaved Rose", which was intended to be discussed in detail with a special paper.

In this paper, first. a methematical equation was deduced defining the conditions for constant velocity of two shafts in space, using equations of space curves. Then the constant velocity conditions of various type of universal joints with balls was discussed and formulas deduced.