Design Principles for Precision Mechatronics

Design Principles for Precision Mechatronics. A collection of applications categorized in themes known from construction principles.

The precision mechatronics community has a long history of continuous updates on DDP (“Des Duivels Prentenboek”) content by Wim van der Hoek and his ‘heritage keepers’. It is considered relevant to prolong this process with new examples from the field of precision mechatronics, incl. opto-mechanics, electro-mechanics and material science.

In the coming year(s), we write a book and a website containing examples of precision mechatronics elements. DSPE members can contribute by writing clear examples to be freely used. Company and designer can be mentioned. Examples should no be complete systems.

2Kinematic designApplication of exact constraints, mechanical decoupling via flexures and elastic hinges
3Design using flexures Design for mobility enabled by flexures; design for compliance in motion direction; design for stiffness in support directions
4Design for static stiffnessApplication of structural loops with high static stiffness; material selection, effect of transmission ratio, Hertzian contact stiffness
5Design for Dynamic stiffnessDesign for high eigenfrequencies; Frequency response function design (Mode shape superposition, actuator and sensor location)
6Design for dampingImplementation of energy dissipation that slows down motion (without introducing position uncertainty)
7Design for low friction and hysteresisMinimization of friction and virtual play in high-precision structures, connections and guideways
8Design for stability (long term)Material selection for thermal stability  (CTE,  thermal conduction, thermal diffusivity, shape topology optimization); thermal isolation
9Design for low sensitivity (external disturbances)Application of thermal center and thermal (compensation) loops with high stability, low expansion materials, isolation of disturbances e.g. via isolated metrology loop, offset minimization e.g. rules of Abbe and Bryan, and drive offset minimization relative to the center of mass, high-bandwidth feedback control
10Design for load compensationApplication of weight-compensation, reaction force compensation and (parasitic) stiffness compensation

Design principles