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A master's thesis from Aalborg University
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Commercial application of the Bolt Tension Estimator Technology

Translated title

Kommercialisering af Boltspændingsteknologi

Author

Term

4. semester

Publication year

2021

Submitted on

Pages

75

Abstract

This thesis examines how a vibration-based bolt tension estimator developed at DTU can be commercialized. The technology gently excites a bolt head, measures its frequency, and uses algorithms to estimate tension, with the potential to enhance safety and streamline inspections of structures such as cranes, elevators, and high-voltage installations. The research follows a case study approach with judgmental sampling of relevant companies, presentations and interviews, and grounded theory analysis of transcripts; emergent themes were organized within a New Product Development (NPD) framework. Among contacted stakeholders, FORCE Technology showed the strongest interest in collaborating with DTU, while Tivoli and DTU Campus Service deemed the solution unsuitable for their routine service. KONE and Energinet reached a similar conclusion but recommended approaching construction contractors, where quality assurance documentation is critical and the technology may add value. Work with FORCE Technology suggested the timing for development is favorable, aligned with its product strategy and supported by expected growth in the offshore sector. In the idea stage, a complementary team of DTU researchers (technical expertise) and FORCE Technology (market and industry insight) is highlighted as key to developing a fit-for-purpose solution. Limitations included slow response times from companies and that only about half agreed to a presentation.

Dette speciale undersøger, hvordan en vibrationsbaseret bolt-tensionsestimator udviklet ved DTU kan bringes fra laboratoriet til markedet. Teknologien påfører lette vibrationer på boltens hoved, måler frekvensen og bruger algoritmer til at estimere spændingen, med potentiale for at øge sikkerheden og effektivisere inspektion af strukturer som kraner, elevatorer og højspændingsanlæg. Undersøgelsen er et casestudie med skønsmæssig udvælgelse af relevante virksomheder, præsentationer og interviews, som blev transskriberet og analyseret ved hjælp af grounded theory; de fremkomne temaer blev struktureret i en New Product Development (NPD)-ramme. Blandt de kontaktede aktører viste FORCE Technology størst interesse for et samarbejde med DTU, mens Tivoli og DTU Campus Service vurderede, at løsningen ikke passede til deres rutineservice. KONE og Energinet nåede samme konklusion, men pegede på entreprenører i anlægsbranchen som mere relevante målgrupper, især hvor dokumentation af kvalitetssikring er vigtig. Samarbejdet med FORCE Technology pegede på, at timingen for udvikling er gunstig, både i forhold til virksomhedens produktstrategi og forventet vækst i offshore-sektoren. I idéfasen fremhæves en stærk, tværfaglig konstellation af DTU-forskere (teknisk viden) og FORCE Technology (markeds- og brancheindsigt) som central for at skabe en løsning, der er egnet til formålet. Begrænsninger omfattede langsomme svar fra virksomheder og at kun omkring halvdelen ønskede en præsentation.

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