Noise Analysis and Reduction in an Elevator Product with the User Comfort in Mind

Sammanfattning

This work studies the noise sources in an elevator product with the aim of proposing and testing viable solutions for both sound reduction and, eventually, prevention. The research question is centred around the possibility of actually proposing solutions, for the five problems identified, that are minimally intrusive and easily implemented in an industrial context. The practical purpose is to make the lift less noisy in its whole use-case scenario making it more appealing from a psychoacoustic standpoint while also enhancing its economic value. The methodology used is aligned with a positivist research paradigm that aims at testing, within reason, all the possible hypothesis in order to identify the correct parameters that govern the studied phenomena. The results corroborate this scenario, presenting encompassing improvements on the many problems, some of which can be prevented entirely while the others are valuable examples on how to effectively contain their propagation. The conclusions drawn from these data amount to a considerable summary of techniques and methods to approach, identify and counter many noise generating mechanisms. The working principles can be applied generally over a large variation of scenarios since they depend on the clever use of common strategies. The final impact of this work is thus to give a working example that adds to an already ample pool of knowledge thanks to its clever re-use of simple ideas to efficiently improve an already implemented design.