1 Correction to: Chin J Mech Eng (2021) 34:52 https://doi.org/10.1186/s10033-021-00566-3

Following the publication of the original article [1], the authors identified an error in the affiliation.

The correct affiliation is given below:

School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510641, China.

The original article [1] has been corrected.