StefRan88
Guest
Good morning to all
My name is stefano and I am a mechanical engineering student at the University of the Eagle.
I am a new user of the forum and this is my first post!!!!
I am working with other colleagues on the design of a compact loader blade for a mechanical design examination.
In particular I am trying to define the cinematics and dynamics of the lifting arm, so that I can operate a choice in catalog (or possibly design) for hydraulic lifting actuators.
in particular I imported the model in creo 3.0 (student version) and I set all the connection constraints (I used mostly pin, for hinges, and I ran to define the sliding of the stems of the actuators in the respective cylinders). My will is to assign to the arm a lifting condition typical of the operation of the medium (so bucket that goes backwards, ascent of the arm with bucket that is maintained in the same position, then discharge of the bucket and finally descent of the arm with bucket that keeps parallel to the ground); to do this I have created an excel spreadsheet in which I defined the speeds of actuators.
Actually maybe I should better specify the method used to keep the bucket in place during the ascent: I used the data of a cinematic solutor 2d...this because I was not able to impose a bond of parallelism or orientation to the bucket compared to another component! ! ! !
the cinematic model is perfectly working, while I can't say the same regarding dynamics: often and willingly analysis is not completed (returns errors); When I go to graphics the force of actuators, the diagrams have multiple fluctuations. . .
I wonder if anyone can give me any indication. . .
I press that I am a neophyte of creo...in general I am a neophyte of cinematic/dynamic analysis! ! ! !
thanks for the attention
Good Sunday! !
My name is stefano and I am a mechanical engineering student at the University of the Eagle.
I am a new user of the forum and this is my first post!!!!
I am working with other colleagues on the design of a compact loader blade for a mechanical design examination.
In particular I am trying to define the cinematics and dynamics of the lifting arm, so that I can operate a choice in catalog (or possibly design) for hydraulic lifting actuators.
in particular I imported the model in creo 3.0 (student version) and I set all the connection constraints (I used mostly pin, for hinges, and I ran to define the sliding of the stems of the actuators in the respective cylinders). My will is to assign to the arm a lifting condition typical of the operation of the medium (so bucket that goes backwards, ascent of the arm with bucket that is maintained in the same position, then discharge of the bucket and finally descent of the arm with bucket that keeps parallel to the ground); to do this I have created an excel spreadsheet in which I defined the speeds of actuators.
Actually maybe I should better specify the method used to keep the bucket in place during the ascent: I used the data of a cinematic solutor 2d...this because I was not able to impose a bond of parallelism or orientation to the bucket compared to another component! ! ! !
the cinematic model is perfectly working, while I can't say the same regarding dynamics: often and willingly analysis is not completed (returns errors); When I go to graphics the force of actuators, the diagrams have multiple fluctuations. . .
I wonder if anyone can give me any indication. . .
I press that I am a neophyte of creo...in general I am a neophyte of cinematic/dynamic analysis! ! ! !
thanks for the attention
Good Sunday! !
