# A novel second-order output spectrum based local tuning method for locating bolt-loosening faults

> Research article (Mechanical Systems and Signal Processing, 2020) · cited 28× · AI/ML

**Wikidata**: [openalex:W3042137377](https://www.wikidata.org/wiki/openalex:W3042137377)  
**Source**: https://4ort.xyz/entity/a-novel-second-order-output-spectrum-based-local-tuning-method-for-locating-bolt-loosening-faults