控制工程(周川)midterm.ppt

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1、1,Midterm Test（期中测试）,1.The system block diagram is as follows，determine the transfer function and,+,2.The open-loop transfer function of unit negative feedback system is as follows:,Determine the unit step response of the system.,2,3.The open-loop transfer function of unit negative feedback system i

2、s as follows:,Determine the range of if the relative stability is-1.(That means the real parts of closed-loop poles are less than 1).,4.The open-loop transfer function of unit negative feedback system is:,Determine the steady-state value and maximum value of the response to the step input.,3,5.The s

3、ystem block diagram is as follows,if the performance indices are required as:1)P.O.is,2)peak time is s.,(1)Determine the value of and.(2)Determine the steady state error when.,4,6.The open-loop transfer function of unit negative feedback system is as follows:,Determine the value of K,when the system is marginally stable,and find the frequency of the oscillatory response.,7.Determine the transfer function of the signal-flow-graph model by using Masons formula.,