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The stages of the Incremental Spectrum Analysis (ARSA) method, which is one of the Multimodal Propulsion Methods , can be summarized as follows. Detailed explanation of each stage is explained within the headings.

1. Modal Characteristics Determination

2. Determination of the Performance Point for Each Vibration Mode and Direction

3. Determination of Modal Pseudo-Acceleration, Modal Displacement Increment and Constant Scale Factor

4. Determination of Displacements for Each Direction and Mode

5. Determination of Internal Forces for Each Direction and Mode

6. Application of Complete Quadratic Combination (CQC) Rule

7. Determination of Yielded Hinges and Modified Stiffness Matrix

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