68results about How to "Shorten the design and development cycle" patented technology

The invention relates to an aircraft landing gear simulator which comprises a signal simulation unit for receiving manipulating instructions of a landing gear and a processing unit. The processing unit is coupled with the signal simulation unit, uses the manipulating instructions of the landing gear as the input of an operated aircraft landing gear real-time model, and outputs at least one state parameter to the signal simulation unit and a display unit. The processing unit comprises at least one instrument coupled to the signal simulation unit, wherein the at least one instrument correspondingly displays at least one state parameter, and the aircraft landing gear real-time model comprises a hydraulic mechanical system module and a control system model. The aircraft landing gear simulator does not require any testing member of real physical tests and can finish various parameter testing and analysis of a landing gear collecting and releasing system. Additionally, partial real parts are replaced under the laboratory environment for performing testing, so that testing times and strength can be reduced, testing cost can be saved, and safety of personnel in dangerous testing is ensured.

The invention discloses a front longitudinal beam anti-collision performance design method for a passenger vehicle and aims at solving the problems that when the traditional trial-and-error method is used for designing the front longitudinal beam of a car in the prior art, a computer simulation model needs to be repeatedly modified, the testing needs to be repeatedly carried out, and the like. The front longitudinal beam anti-collision performance design method for the passenger vehicle comprises the following steps that 1, the average crushing counter force expression (shown as the accompanying drawing) of a multi-right-angle cross section thin wall beam is deduced, in the expression, Pm is the average crushing counter force, the unit of the Pm is kN, n is the number of the cross section right angles of the multi-right-angle cross section thin wall beam, M0 is the unit length plastic limit bending moment, the unit of M0 is N.mm, l is the cross section circumference of the multi-right-angle cross section thin wall beam, the unit of the l is mm, h is the wall thickness of the multi-right-angle cross section thin wall beam, and the unit of the h is mm; 2, the cross section of the crushing deformation part of the front longitudinal beam is designed; 3, the average bending moment expression (Mm=(0.3-0.5)Mmax) of a rectangular cross section thin wall beam is deduced, in the expression, Mm is the average bending moment of the rectangular cross section thin wall beam, and the unit of the Mm is N.mm; and 4, the cross section of the bending deformation part of the front longitudinal beam is designed.

The invention discloses an automatic constructing system designed by electronic circuits, including: memory modules and automatic constructing module. It also discloses an automatic method, including: Step 1 during the pre-determined time, according to the pre-determined processing project information, obtaining the documents corresponding to the pre-saved electronic circuit design, Step 2 sending the documents to the corresponding processing module for operation according to the items information of electronic circuits; Step 3 sending the result report returned from the processing module to the corresponding electronic circuit terminal. The invention realizes the automatic processing on electronic circuit design, effectively improving the quality, shortening the development cycle, and reducing manpower costs.