Since the surface contact between the two layers of springs is very complicated, if the set contact unit is used for calculation, the amount of work will be too large, time-consuming and laborious. Therefore, a simplified calculation method is used, that is, instead of directly applying force, a compression amount is applied to each layer of springs, and their respective elastic forces and stress states are analyzed by calculation.
The specific method is that, according to the assembly diagram, the constraint faces at both ends are considered as rigid bodies, and the arc faces on the left and right sides of the spring are rigidly fixed to limit all degrees of freedom. All nodes on the C and D arcs constrain their degrees of freedom in the circumferential direction (ie, the Z direction) and apply axial (ie, X-direction) displacements, applying a maximum axial displacement of -30 mm. The boundary conditions are as shown in 4, and the large deformation effect is considered in the calculation.
It can be seen from the above results: 1) The maximum stress of the inner ring appears at the top, and its maximum value is 203 MPa. 2) The maximum stress of the outer ring appears on the side of the spring, and its maximum value is 192 MPa. The maximum stress at the top is slightly smaller, with a maximum of 176 MPa. According to the material parameters provided, the maximum stress of the 2-turn spring is within the material's proportional limit and meets the design requirements.
Conclusion and outlook Assurance is a measure of the ability of the system to perform tasks, and its influencing factors are very broad. Supportive system engineering is a complex multidisciplinary system engineering that includes professional engineering such as reliability, maintainability, testability, and comprehensive support engineering. The ultimate goal is to meet the requirements of safeguard technical specifications and achieve support objectives.
As the complexity of the system continues to increase, the use of the system is increasingly dependent on security, and the scope of application of the support system engineering will be more broad. At the same time, supportive systems engineering is an emerging engineering discipline that requires continuous practice and improvement, and requires more scholars to invest in the research and practice of this engineering discipline.
As a weapon and equipment developed by China, the shipbuilding system has its own particularity. It needs to strengthen planning from the top, and take effective measures from the aspects of system, organization, technology and talents to achieve better results. Ensure the formation of combat capability and support capability as soon as possible after the deployment of ship equipment, and achieve a sound and rapid development of ship equipment construction.
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