Design, modelling and experimental validation of bipenniform shape memory alloy-based linear actuator integrable with hydraulic stroke amplification mechanism
Kanhaiya Lal Chaurasiya, Ruchira Kumar Pradhan, Yashaswi Sinha, Shivam Gupta, Ujjain Kumar Bidila, Digambar Killedar +2 · arXiv · 2025
A bio-inspired bipenniform SMA coil linear actuator is modelled and experimentally validated, achieving 257 N at 15 V and reduced drive mechanism weight and energy versus a stepper motor benchmark.
Plain English summary
Why this matters
Key findings
- Mathematical model of a multi-layered bipenniform SMA actuator developed and experimentally validated.
- Actuation force reported as 257 N at 15 V input voltage.
- Reported ~67% reduction in weight of the drive mechanism and 80% fewer components versus the benchmark.
- Reported 32% cost reduction and 19% energy savings versus the benchmark.
- Similar envelope dimensions for assembly compatibility with dampers and louvers.
Limitations
The abstract does not specify long-term durability, cycling life, environmental testing conditions, or detailed failure modes beyond the inclusion of design FMEA; it also does not provide full experimental setup details or performance across a range of loads/strokes.
Publication
- Publisher
- arXiv
- Publication date
- November 28, 2025
- Research type
- Preprint
- arXiv
- 2511.23372
- Access
- open
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