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TROUBLESHOOTING – HOW CAN CRITICAL MACHINE VIBRATIONS AND THEIR CAUSE BE QUICKLY IDENTIFIED AND SUSTAINABLY REDUCED?


Vibrations fascinate us – that's why we deal with them every day. However, we also know their "dark" side: For manufacturers and operators of machines, they can cause trouble and costs in the form of decreased productivity and quality, reduced service life (fatigue), damage and expensive downtime. If they occur at an undesirably high level, there is no time to lose.

Once a measurement reveals that there is a noise or vibration problem, the first step after the assessment is to identify the cause ("root cause analysis"). With the help of our many years of experience and tried-and-tested standard solutions, we can solve some problems within a very short time – in some cases already on site. Some other problems require creative solutions – this is where the inventive spirit of our engineers comes into play. In classic troubleshooting, the path back to smooth operation of your machine usually consists of several steps, which – depending on the problem or issue – are more or less distinct:

1.  Vibration measurement & machine diagnosis including vibration evaluation (e.g. according to DIN ISO 10816) and determination of the cause (What causes the vibrations and how are they transmitted?)
2. Elaboration and evaluation of concepts forvibration reduction (Which measure solves the problem at hand in the fastest, most sustainable and most economical way?)
3.  Implementation of the measures including measurement to document effectiveness

We support our customers worldwide and at short notice from the occurrence of the vibration problem to the solution. Please feel free to contact our expert Marcus Ries.

NUMERICAL CALCULATIONS – HOW CAN (VIBRATION) PROBLEMS BE AVOIDED BEFORE THEY AVEN ARISE?


We asked our customers: Reducing unwanted vibrations is often the most relevant aspect for them when developing new products*. No wonder, because if you ensure already in the planning and design phase that vibrations remain controllable during commissioning and ongoing operation, you avoid not only trouble, but also costs resulting from machine downtimes, poor product quality, machine speeds that cannot be achieved, or additionally necessary reduction measures.

Virtual prototype tests can be used to optimize vibration behavior in the early stages of new or further development. With the help of simulation, however, you not only achieve vibration optimization – an improvement in component or machine functionality, the reduction of machine noise or an increase in efficiency can also be (partial) goals. In short: You can develop more efficient and reliable machines in less time.

FE and MBS calculations have a long tradition in our company. For more than 50 years we have been performing numerical simulations for customers from a wide range of industries. Depending on your needs, we can take over the entire process or provide support in the event of capacity bottlenecks or technically difficult issues.

*"relevant" or "extremely relevant" for more than 75 percent; Online survey of 77 customers from the mechanical engineering industry in spring 2021

OUR SPECIALITIES

While some tasks – for example, making production more efficient or reliable and complying with occupational health and safety regulations – are similar for all machine types, there are also individual challenges in each industry. Over the past decades, in countless projects for manufacturers and operators of paper machines and machine tools, we have been able to build up valuable specialist knowledge in these industries:

Please contact me personally

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I will be happy to advise you on questions relating to vibrations and noise in mechanical engineering.

Dr.-Ing. Marcus Ries

+49 931 49708-370
ries@woelfel.de
Formular

THE MACHINE FOUNDATION CHALLENGE – HOW TO ACHIEVE VIBRATION ISOLATION?


Not all machines require a separate machine foundation, but sometimes it is indispensable – especially when there are high demands for quiet running and vibration protection. This is because, in order to prevent the vibrations emanating from the machine from being transferred to the supporting (building) structure, a dynamic design of the existing machine support, i.e. the machine feet, is often not sufficient for larger machines. This particularly applies to machines that generate greater dynamic forces and machines that require precision – such as turbines, compressors, printing machines, presses, hammers, measuring machines and machine tools.

The machine foundation required in these cases must be individually tailored to the operating and boundary conditions of the machine and its surroundings. For the design, specialist competence is necessary in machine dynamics, but in particular also in structural engineering respectively structural dynamics – two of our areas of expertise.

EARTHQUAKE ENGINEERING

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With over 50 years of experience in earthquake engineering, we can provide you with competent advice on all matters relating to earthquake design in the context of projects in Germany, Europe and worldwide.

38+

YEARS

1000 +

PROJECTS

200+

CUSTOMERS