# Producing negative active stiffness in redundantly actuated planar rotational parallel mechanisms

> Research article (Mechanism and Machine Theory, 2018) · cited 16× · AI/ML

**Wikidata**: [openalex:W2810663936](https://www.wikidata.org/wiki/openalex:W2810663936)  
**Source**: https://4ort.xyz/entity/producing-negative-active-stiffness-in-redundantly-actuated-planar-rotational-parallel-mechanisms