【正文】 es to drive system a from adjustto carry on the back to press to adjust soon the work principle diagram of system,such as diagram I, to system is the work circulation which uses to plete the work enter a stop a back quickly.When slippery pedestal work enter, 34 change to be placed in diagram to show a right toward the valve, the oil pump of provide hydraulicpneumatic dint under thefunction which over flows valve look like ground to keep Heng settle, the oil39。s liquid flows through to change toward the valve and adjust soon valve juniors into the oil urn of 2 have no a pole chamber, push slippery the set be left shift。t change original work that system so of plications not line system, for the sake of easy to study its dynamic state characteristic, build up a reasonable simple dynamic state mathematics model which only emphasizes to consider main impact factor is particularly important[1][2].Know from the theories the analysis with experiment the research:That system of process time be soon that the process which is far larger than to adjust valve is soonhorary, oil urn have no the pole chamber effectively accepts to press area very greatly, adjust soon valve export discharge of super adjust a reflection in a mome nt is slippery pedestal sport speed of the variety be pimping[2].For openning widely and going deep into dynamic state characteristic of study the system, make research work can on the microputer availably carry on, this text to original model[2] do further simplification, on thesupposition that adjust soon the valve outputs in the whole transition process of system Hengsettle of discharge, treat it as to flow a , the structure sketch plan of the dynamic state model of system such as figure 2 show, it from oil urn, slippery set, carry on the back to press valve and unite connector39。s etc. to constitute from the text in use of sign asfollows: S 1flow a source, then adjust soon valve export discharge。 V3, the V4oil urn has no pole chamber and has a pole chamber the contents to accumulate。s matching diagram is an effect to flow diagram, it is the energy which presses system to deliver a way, take actual structure as foundation, the function which uses concentration parameter the of sub system relates to an abstract earth39。1 crunodes mean in the system to belong to establish a conjunction, each key is upperclass to change to measure equality but dint to change to measure it with is means a different energy form the transformation machine of, the TF bottom mark of the letter of alphabet mean that the dint changes to measure or flows to change to measure of conversion specific short and horizontal Gang of key means that key ascend two change the cause and effect between quantities relate whole arrowheadses mean a control the dint of sex dollar and sensitive faculty dollar to change to measure in three kinds of function dollar and flow to change to measure it have integral calculus or differential calculus relation, therefore, according to figure 3 can deduce to submit to havenine plications that the appearances change to measure not the line appearance square text to slippery pedestal the research of the dynamic state characteristic from slippery pedestal of ex hurtle and exercise steady sex both side to mence, use four ranks certainly tread long RungeKutta method at IBMPC microputer up carry on numeral to imitate really, imitate a true result to distinguish such as figure 4 with figure 5 show. Three, slip to hurtle before the pedestal Slippery before the pedestal hurtle phenomenon is what function at slip the load of on the stage suddenly disappeared( if drilled to deeply work circumstance) this process, the variety which slips two chamber pressure P3s and P4 of the load F, sport speed V, oil urn of pedestal can from the figure 4 imitate true result the slippery pedestal evenly and soon exercises under the function of the load, the oil urn has no pole chamber oil liquid pressure came together a great deal of energy in the oil loading to suddenly disappear, that chamber is hydraulicpneumatic to immediately and quickly lower, the oil liquid turns into the process of lowpressure Tai toward system to release a lot of energies from the high pressure Tai and cause slippery pedestal the high speed pounds at , slip a pedestal of ex hurtle to make an oil urn to have a pole chamber the 4 oil liquid is press to cause to carry on the back to press to go up, thus the depletion drop one part of energies in the system, to slippery pedestal of front blunt certainly repress a see, in the system study, from adjust to carry on the back entrance pressure of press the valve and be subjected to an oil urn two chambers hydraulicpneumatic prehensive load a disappeared moment, from adjust to carry on the back the pressure of press the valve quickly rises, and stabilize the number which starts to carry on the back to press at the beginning in the Gao the diagram it is thus clear that, from adjust to carry on the back to press to adjust soon the system is in a twinkling load to disappear oil urn carry the range that the pressure go up on oil urn39。Result, slip a pedestal of ex blunt the quantity adjusts system to soon want than the tradition small be close to 20%.It is thus clear that adoption from adjust to carry on the back a Chuang to adjust soon system conduct and actions to drive the slippery pedestal of system to have good characteristic in the aspects of hurtling before repress, among them from adjust to carry on the back to press valve to have very your work to use. Four, slip the exercise of pedestal steady While regarding as a load period of used for the slippery on the stage variety(if the Xian pares to process a circumstance), the sport speed which slips a pedestal wants to produce certain。t big, oil urn tw