Hello everyone, I need to complete a mechanical engineering thesis on the actuation and operation of one of the 3 piano pedals (or 4 as in Fazioli). I need to study the various forces involved. To do this, I will first need to understand how the pedal mechanism works and then the measurements, weights, and materials of the various components of the pedal in question. Do you know a text where I can learn in detail about the mechanics of the pedal assembly, and the role and function of the individual elements? Also, regarding information on weight, dimensions, and materials of the various components (necessary to calculate the forces involved), are they standard once the piano model is chosen (1/4, 3/4 grand, or full size)? If not, where could I retrieve this information? Any other advice is welcome. Thank you all
I am only just reading your post, as I have been on vacation abroad. I will try to look through my technical texts to see if I find something worthy of an in-depth study like yours. Give me your email if you want. I will try to send you some photos that I cannot manage to post here. My [email is] ferpao50@gmail.com
Anyway, let us say in advance that the sustain pedal lifts the damper mechanism and encounters resistance at the base of the "lyre" (the brass pedal that moves the brass rod upwards). This meets a hinged wooden lever, which receives the push on a polished leather rod (another type of sliding friction). Finally, a small felted wooden cylinder receives the push and lifts the felted bar, also along its entire length. The resistance of the dampers is overcome. This resistance is composed of the friction of the bar's rotation pivot, the weight of all the dampers (which depends on how the Manufacturer decided to lead the joints of their mechanism and the length of the heads), and the friction of the felts on the strings, especially the two- and three-string wedge types, which over time wear down, digging deeper between the strings themselves. Furthermore, the dampers themselves, if they do not rise perfectly vertically or do not fall perfectly onto or inside the strings without deviation, cause considerable resistance. Poor individual regulation of them can cause resistance and slowing in the lifting and falling movement. The "una corda" (una corda) shift pedal is used occasionally, therefore not causing fatigue. The tonal pedal may also prove to be less docile because it is not often used, but this is irrelevant to the pianist's fatigue.
Hello, please could you also send me the information material regarding the pedal requested by @Fra100, also to me @pianoexpert? My email is urubko1@gmail.com
