What is the significance of thermal growth in machine alignment?

Thermal growth plays a crucial role in the alignment of machinery because as machines operate, they generate heat, which then causes materials to expand. This thermal expansion can alter the machine's operating position and misalign components that were properly aligned when cold. Therefore, understanding and accounting for thermal growth during the alignment process is essential for maintaining optimal performance and reducing the likelihood of operational issues.

If machines are not aligned considering their thermal growth, once they reach their operating temperatures, they can shift to positions that may cause undue stress on components, increased wear, and potential mechanical failure. Recognizing this effect is vital for engineers and millwrights to ensure long-term reliability and efficiency in machine operations.