Dynamics of a 3-UPS-UPU-S Parallel Mechanism

نویسندگان

چکیده

In this paper, a parallel mechanism with two rotational degrees of freedom is proposed. It could rotate freely and continuously around the coordinate axes at fixed origin frame. The structure second-order over constraint moving platform base are connected by five kinematic chains. motion characteristics analyzed reciprocal screw equation. Then, kinematics dynamics modelling carried out systematically in unified way. established means screws, displacements accelerations each joint any point on link be calculated equation directly. analysis acceleration its mathematical expression form given, matrix applied into dynamic based Newton–Euler All forces torques obtained single set equations.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

COORDINATE INFLUENCE ON SINGULARITY OF A 3-UPS PARALLEL MANIPULATOR

This paper shows the coordinates influence on singularity of a three degree-of-freedom structure, namely, three-Universal-Prismatic-Spherical (3-UPS) parallel manipulator. Rotational coordinates, which are chosen to define the orientation of the platform, affect the singularity of the manipulator. Euler parameters, which don't have any inherent geometrical singularity are utilized, however they...

متن کامل

Dynamics of the Translational 3-upu Parallel Manipulator

Matrix relations for dynamics analysis of a spatial translational 3-UPU parallel mechanism are established in this paper. Three identical legs connect the moving platform by universal joints. Knowing the translation motion of the platform, inverse dynamics problem is solved using an approach based on explicit equations of parallel robots dynamics, but it has been verified the results in the fra...

متن کامل

Workspace Optimization of 3-Legged UPU and UPS Parallel Platforms With Joint Constraints

In this paper the workspace optimization of 3-legged translational UPU and orientational UPS parallel platforms under joint constraints is performed. The workspace of both platforms is parametrized using several design parameters that span a large range of values. In this paper both the unconstrained and the constrained workspaces (i.e., workspace with joint limits) are used. For the workspace ...

متن کامل

Mobility and Motion Analysis of a Special 3-UPU Parallel Mechanism

In this paper, the mobility and motion characteristics of a special 3-UPU parallel mechanism (PM) are studied. Using the screw theory and geometric method, the mobility of this PM is analyzed. When the moving platform and the base are not parallel, it has two rotational and one translational DOF. There is always a midperpendicular plane between the base and the moving platform. The moving platf...

متن کامل

Kinematics of the Spatial 3-upu Parallel Robot

Parallel robots are closed-loop structures presenting very good potential in terms of accuracy, stiffness and ability to manipulate large loads. One of the main bodies of the mechanism is fixed and is called the base, while the other is regarded as movable and hence is called the moving platform of the manipulator. Generally, the number of actuators is typically equal to the number of degrees o...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Applied sciences

سال: 2023

ISSN: ['2076-3417']

DOI: https://doi.org/10.3390/app13063912