Preload in engineering refers to the intentional application of compressive force or tension to components of a mechanical system before they are subjected to operational loads. This technique is commonly used in various fields, such as structural engineering, mechanical engineering, and aerospace engineering, to enhance the performance, stability, and durability of assemblies. ### Key Concepts of Preload: 1. **Purpose**: The primary objectives of applying preload include: - Reducing the risk of fatigue failure by minimizing cyclic stresses.
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