Geared Quick Opening Device Parameters Of The Overall Optimization Of The Design Method

The tooth-locked quick closure device is widely adopted in various industries because of its wide applicability and convenient operation. And also Because of the complexity of its structure and load distribution, it is only in Japan where the design standard for the quick open closure device with high and super high pressure has been made, there is no corresponding standard to be followed in the design of quick opening closure vessels which belong to middle and low pressure ones, And a well-rounded engineering design method is not formed ,too. On the base of the basic structure study of the tooth-locked quick closure vessel of middle and low pressure with crown head, the optimization method of parameterized whole device is presented in this paper, the emphases of research is put on optimization of the tooth-locked quick closure device whose structure and load distribution is complicated, the wall of vessel, however, is designed according to the existing strength formula. The main research results are as follows:The friction contact between teeth in the tooth-locked quick closure device is studied, and the simulation is made to the contact conduct between the teeth utilizing the face to face contact model with contact element and coulomb friction model, the whole finite element model of tooth-locked quick closure device is created.The failure modes and causes of the tooth-locked quick closure device are studied, the 3-D stresses of FEA numerical value results is assessed by stress categorization of design by analysis, the status of design method is also studied and the optimization design method of whole device is created on the base of FEA.The method of parametric unitary optimization of tooth-locked quick closure device is presented in this paper. The automatic geometric model generation and the results abstract are performed by the APDL program, and an optimization strategy for such nonlinear and mixed parameters problem as a tooth-locked quick closure device is also proposed.The strain and stress of the tooth-locked quick closure device is concluded, especially the distribution research of normal contact force and tangential friction force between the teeth is the unique feature hi this paper.